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Absolute Value
Add, subtract, multiply or divide any two numbers with absolute value signs. Positive Difference.

Affine Cipher
Builds the Affine Cipher Translation Algorithm from a string given an a and b value

Algebraic Substitutions
Given an algebraic statement with variables [a-z], this calculator takes a set of given substitution values, i.e., x=2,y=3,z=4, and evaluates your statement using the substitution values.

Analysis of Variance (ANOVA)
Performs 1 way analysis of variance or 2 way analysis of variance on a set of data with critical value test and conclusion.

Annuities
Solves for Present Value, Accumulated Value (Future Value or Savings), Payment, or N of an Annuity Immediate or Annuity Due.

Arithmetic Annuity
Calculates the Present Value, Accumulated Value (Future Value), First Payment, or Arithmetic Progression of an Increasing or Decreasing Arithmetic Annuity Immediate.

Arithmetic Perpetuities
Solves for Present Value, First Payment, Arithmetic Payment, or Interest rate for an Arithmetic Perpetuity Immediate or Due

Basic Statistics
Given a number set, and an optional probability set, this calculates the following statistical items:
Expected Value
Mean = μ
Variance = σ2
Standard Deviation = σ
Standard Error of the Mean
Skewness
Mid-Range
Average Deviation (Mean Absolute Deviation)
Median
Mode
Range
Pearsons Skewness Coefficients
Entropy
Upper Quartile (hinge) (75th Percentile)
Lower Quartile (hinge) (25th Percentile)
InnerQuartile Range
Inner Fences (Lower Inner Fence and Upper Inner Fence)
Outer Fences (Lower Outer Fence and Upper Outer Fence)
Suspect Outliers
Highly Suspect Outliers
Stem and Leaf Plot
Ranked Data Set
Central Tendency Items such as Harmonic Mean and Geometric Mean and Mid-Range
Root Mean Square
Weighted Average (Weighted Mean)
Frequency Distribution
Successive Ratio

Black-Scholes
Calculates the call or put option value of a stock based on inputs related to the option using Black Scholes method.

Bond Price Formulas
Given a face value, coupon percent, yield percent, term, and redemption value, this calculates the price of a bond using the four price formulas for bonds
1) Basic
3) Base
4) Makeham

Break Even
Given a fixed cost, variable cost, and revenue function or value, this calculates the break-even point

Capitalized Cost and Periodic Charge
Given an Asset Value (A), a Salvage Value (S) at time (N), a sinking fund rate of (j), an effective rate of interest (i), and maintenance expense (M), this calculator solves for periodic charge (H) and capitalized cost (K)

Chebyshevs Theorem
Using Chebyshevs Theorem, this calculates the following:
Probability that random variable X is within k standard deviations of the mean.
How many k standard deviations within the mean given a P(X) value.

Chi-Square χ2 Test
This calculator determines a χ2 chi-square test on a test statistic and determines if it is outside an accepted range with critical value test and conclusion.

Chi-Square Critical Values
Given a probability, this calculates the critical value for the right-tailed and left-tailed tests for the Chi-Square Distribution. CHIINV from Excel is used as well.

Class Frequency Goodness of Fit
Performs a goodness of fit test on a set of data with class boundaries (class boundary) with critical value test and conclusion.

Coin Amount to Denomination
Takes a money value and using the highest possible bills/coins, constructs the amount using bills and coins.

Coin Values
This calculates the total value of a given amount of:
* Pennies
* Nickels
* Dimes
* Quarters
* Half-Dollars
* Dollars

Coin Word Problems
This word problem lesson solves for a quantity of two coins totaling a certain value

Complex Number Operations
Given two numbers in complex number notation, this calculator:
1) Adds (complex number addition), Subtracts (complex number subtraction), Multiplies (complex number multiplication), or Divides (complex number division) any 2 complex numbers in the form a + bi and c + di where i = √-1.
2) Determines the Square Root of a complex number denoted as √a + bi
3) Absolute Value of a Complex Number |a + bi|
4) Conjugate of a complex number a + bi

Compound Interest and Annuity Table
Given an interest rate (i), number of periods to display (n), and number of digits to round (r), this calculator shows the values for the following 4 compound interest annuity functions from time 1 to (n) rounded to (r) digits:
vn
d
(1 + i)n
an|
sn|
än|i
sn|i
Force of Interest δn

Confidence Interval for the Mean
Calculates a (90% - 99%) estimation of confidence interval for the mean given a small sample size using the student-t method with (n - 1) degrees of freedom or a large sample size using the normal distribution Z-score (z value) method including Standard Error of the Mean

Continous Annuity
Determines the Present Value and Accumulated Value of a Continuous Annuity

Coupon Comparison
Given a cost of goods, a dollar off coupon, and a percentage off coupon, this calculator will compare the two deals and determine which one is of more value. If the dollar coupon wins, the calculator will project the break even price where the dollar coupon would surpass the percentage coupon

Critical Values for F-test
Calculate a critical value for the F-Test statistic based on DF1, DF2, and α

Critical Z-values
Given a probability from a normal distribution, this will generate the z-score critical value. Uses the NORMSINV Excel function.

Cube
Solves for Volume (Capacity), Lateral Area,Surface Area, and the value of a side for a cube.

Declining Balance Depreciation
Solves for Depreciation Charge, Asset Value, and Book Value using the Declining Balance Method

Dividend Discount Model
This calculator determines the present value of dividends using the Dividend Discount Model.

Dollar Weighted Interest Method
Solves for Interest Rate, Starting Asset Value, Ending Asset Value, and Expenses using the Dollar Weighted Method.

Double Declining Balance Depreciation
Calculates Depreciation and Book Value using the Double Declining Balance Depreciation Method.

Equation and Inequalities
Solves an equation or inequality with 1 unknown variable and no exponents as well as certain absolute value equations and inequalities such as |x|=c and |ax| = c where a and c are constants. Solves square root, cube root, and other root equations in the form ax^2=c, ax^2 + b = c. Also solves radical equations in the form asqrt(bx) = c. Also solves open sentences

Expected Frequency
Given a contingency table (two-way table), this will calculate expected frequencies and then determine a conclusion based on a Χ2 test with critical value test and conclusion.

Exponential Growth
This solves for any 1 of the 4 items in the exponential growth equation or exponential decay equation, Initial Value (P), Ending Value (A), Rate (r), and Time (t).

Fishers Exact Test
Given a, b, c, and d, this calculates the probability of any such set of values using Fishers exact Test

Fractions and Mixed Numbers
Given (improper fractions, proper fraction, mixed numbers, or whole numbers), this performs the following operations:
* Subtraction (Subtracting)
* Positive Difference (Absolute Value of the Difference)
* Multiplication (Multiplying)
* Division (Dividing: complex fraction division is included)
* Compare Fractions
* Simplifying of proper and improper fractions as well as mixed numbers. Fractions will be reduced down as far as possible (Reducing Fractions).
* Reciprocal of a Fraction
* Find all fractions between two fractions

Function
Takes various functions (exponential, logarithmic, signum (sign), polynomial, linear with constant of proportionality, constant, absolute value), and classifies them, builds ordered pairs, and finds the y-intercept and x-intercept and domain and range if they exist.

Functions-Derivatives-Integrals
Given a polynomial expression, this calculator evaluates the following items:
1) Functions ƒ(x). Your expression will also be evaluated at a point, i.e., ƒ(1)
2) 1st Derivative ƒ'(x) The derivative of your expression will also be evaluated at a point, i.e., ƒ'(1)
3) 2nd Derivative ƒ''(x) The second derivative of your expression will be also evaluated at a point, i.e., ƒ''(1)
4) Integrals ∫ƒ(x) The integral of your expression will also be evaluated on an interval, i.e., [0,1]
5) Using Simpsons Rule, the calculator will estimate the value of ≈ ∫ƒ(x) over an interval, i.e., [0,1]

Geometric Annuity Immediate
Given an immediate annuity with a geometric progression, this solves for the following items
1) Present Value
2) Accumulated Value (Future Value)
3) Payment

Hyperbolic Function
Calculates hyperbolic function values: sinh, cosh, tanh, csch, sech, coth

Hyperbolic Inverse
Calculates hyperbolic function values: arcsinh, arccosh, arctanh, arccsch, arcsech, arccoth

Hypothesis Testing for a proportion
Performs hypothesis testing using a test statistic for a proportion value.

Input Table
Given an input table with input and output values, this will determine the operator and rule used to populate the missing values.

MAPE - MPE - MAPD
Given a time series of actual and forecasted values, this determines the following:
* Mean Absolute Percentage Error (MAPE) also known as the Mean Absolute Percentage Deviation (MAPD)
* Symmetric Mean Absolute Percentage Error (sMAPE)
* Mean Absolute Percentage Error (MPE)

Mcnemar Test
Given a 2 x 2 contingency table and a significance level, this will determine the test statistic, critical value, and hypothesis conclusion using a Mcnemar test.

Mortgage
Calculates the monthly payment, APY%, total value of payments, principal/interest/balance at a given time as well as an amortization table on a standard or interest only home or car loan with fixed interest rate.

Net Present Value (NPV) - Internal Rate of Return (IRR) - Profitability Index
Given a series of cash flows Ct at times t and a discount rate of (i), the calculator will determine the Net Present Value (NPV) at time 0, also known as the discounted cash flow model.
Profitability Index
Also determines an Internal Rate of Return (IRR) based on a series of cash flows

Normal Distribution
Calculates the probability that a random variable is less than or greater than a value or between 2 values using the Normal Distribution z-score (z value) method (Central Limit Theorem).
Also calculates the Range of values for the 68-95-99.7 rule, or three-sigma rule, or empirical rule

Percentile for Normal Distribution
Given a mean, standard deviation, and a percentile range, this will calculate the percentile value.

Perpetuities
Solves for Present Value, Payment, or Interest rate for a Perpetuity Immediate or a Perpetuity Due.

Place Value
Given a whole number or a decimal, the calculator will perform place number analysis on each place in your number.
For the whole and decimal portion, the calculator goes out to the 100 trillion mark.

Proportion Sample Size
This calculator determines a sample size to select to meet certain criteria related to a confidence percentage, reliability percentage, and a p value proportion. Simply enter your values not using percentage signs. This works whether p^ is known or not known.

Put Options and Call Options
Shows the basics of a call option and put option including intrinsic value, extrinsic value, and in/out/at the money

Random Number Generator
This program generates (n) random numbers between a set of values you specify.
Example: Generate 5 random numbers between 0 and 100.

Random Sampling from the Normal Distribution
This performs hypothesis testing on a sample mean with critical value on a sample mean or calculates a probability that Z <= z or Z >= z using a random sample from a normal distribution.

Random Test
Given a set of data and an α value, this determines the test statistic and accept/reject hypothesis based on randomness of a dataset.

Ratios
* Simplifies a ratio of a:b
* Given a ratio in the form a:b or a to b, and a total population amount, this calculator will determine the expected value of A and B from the ratio.

Roman Numeral Conversions
Converts a Positive integer less than 4000 to a Roman Numeral.
Converts a Roman Numeral with a positive value less than 4000 to a number.

Sample Size Reliability for μ
Given a population standard deviation σ, a reliability (confidence) value or percentage, and a variation, this will calculate the sample size necessary to make that test valid.

Sample Size Requirement for the Difference of Means
Given a population standard deviation 1 of σ1, a population standard deviation 2 of σ2 a reliability (confidence) value or percentage, and a variation, this will calculate the sample size necessary to make that test valid.

Sign Test
This will determine whether to accept or reject a null hypothesis based on a number set, mean value, alternative hypothesis, and a significance level using the Sign Test.

Simple and Compound and Continuous Interest
Calculates any of the four parameters of the simple interest formula or compound interest formula or continuous compound formula
1) Principal
2) Accumulated Value (Future Value)
3) Interest
4) Time.

Simple Discount and Compound Discount
Given a principal value, interest rate, and time, this calculates the Accumulated Value using Simple Discount and Compound Discount

Sine Wave
Solves for any of the 3 items of the Sine Wave: Peak Value, Average Value, and RMS value given 1 input.

Sinking Fund Depreciation Method
Using the Sinking Fund method of Depreciation, this calculator determines the following:
* Depreciation at time t (Dt)
* Asset Value (A)
* Salvage Value (S)
* Book Value at time t (Bt)

Straight Line Depreciation
Solves for Depreciation Charge, Asset Value, Salvage Value, Time, N, and Book Value using the Straight Line Method.

Student-t Distribution Critical Values
Given an α value and degrees of freedom, this calculates the right-tailed test and left-tailed test critical values for the Student-t Distribution

Sum of the Years Digits (SOYD) Depreciation
Solves for Depreciation Charge, Asset Value, and Book Value using the Sum of the Years Digits Method

T-Bill
Calculates any of the four items of the T-Bill (Treasury Bill or TBill) formula:
1) Price (P)
2) Face Value (F)
3) Number of Weeks (w)
4) Yield Rate (y)

Time Weighted Interest Method
Solves for Interest Rate based on 2 annual asset value events other than beginning or ending value using the Time Weighted Method

Units of Output (Service Output) Depreciation
Given an asset value, salvage value, production units, and units per period, this calculates the depreciation per period using the units of output depreciation (service output depreciation)

Zero-Coupon Bond Price
This calculator calculates the price of a zero-coupon bond given a face value, yield rate, and term.

You can buy 8 DVDs for \$48,how many can you buy for 96\$
Absolute value of x less than 8
The domain of a relation is all even negative integers greater than -9. The range y of the relation
Absolute value of x less than 8
5 -8| -2n|=-75
Carmen is serving her child french fries and chicken wings for lunch today. Let f be the number of f
The distance between X and 8 is less than 14
There are 76 milligrams of cholesterol in a 3.2 ounce serving of lobster. How much cholesterol is in
If Mr hernandez has 5 times as many students as Mr daniels and together they have 150 students how m
There are 4064 calories in 8 pints of strawberry icecream. How many calories are ther in each pint o
Compute a 75% Chebyshev interval around the mean for x values and also for y values.
4 teaspons of vegetable oil and 6 teaspoons of vinegar. 20 teaspoons of vegetable oil to how many te
8 sweets are shared among 4 pupils. how many does each pupil get
jamie needs 3 cups of flour and 4 cups of sugar how many cups of sugar will she need if she uses 9 c
eana paid \$5 for 20 lbs of bananas. how much were each pound?
Suppose Briley has 10 coins in quarters and dimes and has a total of 1.45. How many of each coin doe
Melinda is paid 17000 per year. She is also paid a sales commission of 5% of the value of her sales.
Six ounces of canned fish in oil has 396 calories. How many calories does 1 ounce have?
Clara can bake 17 cookies with each scoop of flour. With two scoops of flour, how many cookies can C
A house valued at 70,000 in 1989 increased in value to 125,000 in 2000. Find a function which gives
Mary paid 1.97 for toothpaste and a bar of soap using a discount coupon if the toothpaste cost 1.29
Liz harold has a jar in her office that contains 47 coins. Some are pennies and the rest are dimes.
Amy deposits 4000 into an account that pays simple interest at a rate of 6% per year. How much inter
79 cents in 7 coins
If 3 pounds of apples cost 0.90, how much will 10 pounds cost?
triple the value of c plus 3 is 84
If you can buy one of pineapple chunks for \$2 then how many can you buy with \$10
The club uses the function S(t) = -4,500t + 54,000 to determine the salvage S(t) of a fertilizer ble
Kevin and randy have a jar containing 41 coins, all of which are either quarters or nickels. The tot
Every 100 seeds of corn he plants, he harvests 84 ears of corn. If he wants to harvest 7200 ears of
If it takes 3/4 cup of flour to make 10 pancakes, how much flour will it take to make 40 pancakes
there are some red counters and some yellow counters in the ratio 1:5. There are 20 yellow counters
find the value of ? that corresponds to a confidence level of 86.5
The principal randomly selected six students to take an aptitude test. Their scores were: 87.4 86.9
if a + b = 2 and a2 - b2 = -4, what is the value of a - b?
How many dimes must be added to a bag of 200 nickels so that the average value of the coins in the b
HELP SOLVE
A shopper paid \$51.93 including tax for an item marked \$48.99. What would she pay for another item m
Renee sells 6 gifts in 20 minutes. How many might she sell in 4 hrs
You use 4 gallons of water on 30 plants in your garden. At that rate, how much water will it take to
Juan has d dimes and q quarters in his pocket. The total value of the coins is less than \$14.75. Whi
A laptop is purchased for \$1700. After each year, the resale value decreases by 25%. What will be th
A typical adult has an average IQ score of 105 with a standard deviation of 20. If 20 randomly selec
Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed wit
Facebook provides a variety of statistics on its Web site that detail the growth and popularity of t
Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed wit
Assume the speed of vehicles along a stretch of I-10 has an approximately normal distribution with a
A group of students at a school takes a history test. The distribution is normal with a mean of 25,
Frank averages 1 strike for every 4 frames that he bowls. If he bowled 48 strikes in 1 season, how m
Below are data showing the results of six subjects on a memory test. The three scores per subject ar
A financial analyst computed the ROI for all companies listed on the NYSE. She found that the mean o
Conventionally, the null hypothesis is false if the probability value is: a. Greater than 0.05 b. L
A teacher hypothesized that in her class, grades of girls on a chemistry test were the same as grade
A student hypothesized that girls in his class had the same blood pressure levels as boys. The proba
When you conduct a hypothesis testing, at which of the following P-value, you feel more confident to
A student posed a null hypothesis that during the month of September, the mean daily temperature of
If the P-value of a hypothesis test is 0.40, you conclude a. You accept the null hypothesis b. You r
Which of the following descriptions of null hypothesis are correct? (Select all that apply) a. A nu
Imagine that a researcher wanted to know the average weight of 5th grade boys in a high school. He r
Imagine a researcher posed a null hypothesis that in a certain community, the average energy expendi
Compared to the normal distribution, the t distribution has ___ values at the top and ___ at the tai
In order to test if there is a difference between means from two populations, which of following ass
A researcher posed a null hypothesis that there was no significant difference between boys and girls
A researcher posed a null hypothesis that there was no significant difference between boys and girls
Which of the followings can increase the value of t? (select all the apply) a. Increase the standar
Can a coefficient of determination be negative? Why or why not?
Determine whether the random variable is discrete or continuous. In each case, state the possible v
The first significant digit in any number must be 1, 2, 3, 4, 5, 6, 7, 8, or 9. It was discovered t
True or False (a) The normal distribution curve is always symmetric to its mean. (b) If the variance
A random sample of 25 customers was chosen in CCP MiniMart between 3:00 and 4:00 PM on a Friday afte
What is the range of possible values for a coefficient of correlation?
Julia has a bucket of water that weighs 10lbs. The total weight is 99% water. She leaves the bucke
a manufacturing company has a debt to equity ratio of 3 to 2. if the company has a debt of \$12 milli
The margarita is one of the most common tequila-based cocktails, made with tequila, triple sec, and
Jason wrote a total of 8 pages over 2 hours. How many hours will Jason have to spend writing this we
You purchase a car for \$23,000. The car depreciates at a rate of 15% per year. Determine the value
if the point (.53,y) is on the unit circle in quadrant 1, what is the value of y?
f(x)=a(b)^x and we know that f(3)=17 and f(7)=3156. what is the value of b
Juan has d dimes and q quarters in his pocket. The total value of the coins is less than \$14.75. Whi
Substitute the given values into given formula and solve for the unknown variable. S=4LW + 2 WH; S=
What numbers have an absolute value of 9
Jinas final exam has true/false questions, worth 3 points each, and multiple choice questions, worth
The ratio of girls to boys is 14 girls to 12 boys. If there are 6 boys, how many girls are there?
Penelope and Owen work at a furniture store. Penelope is paid \$215 per week plus 3.5% of her total s
Finance
Given that E[Y]=2 and Var [Y] =3, find E[(2Y + 1)^2]
if a train travels at 80 mph for 15 mins, what is the distance traveled?
A person places \$230 in an investment account earning an annual rate of 6.8%, compounded continuousl
Suppose x is a natural number. When you divide x by 7 you get a quotient of q and a remainder of 6.
A jar contains 80 nickels and dimes worth \$6.40. How many of each kind of coin are in the jar?
If f(x) = 3 - 2x and g(x) = 1/x + 5 what is the value of (f/g)(8)?
The ratio of men to women working for a company is 3 to 4. If there are 81 men working for the compa
A family is renting an apartment. For 2007, the rent is \$1376 per month. The monthly rent in 2007
If p+4=2 and q-3=2, what is the value of qp?
The property taxes on a house were \$810. What was the tax rate if the house was valued at \$90,000
In 2010 a algebra book cost \$125. In 2015 the book cost \$205. Whats the linear function since 2010?
porportion problems
A car is purchased for \$24,000 . Each year it loses 30% of its value. After how many years will t
if n(A) = 6, n(A intersect B) = 2 and n(A union B) = 11, find n(B)
Rita has spent \$16 so far on gifts. The additional amount she will spend will be less than \$14. What
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes
Solve for x
5 chocolates cost \$25. What will 15 chocolates cost?
The jimenez family inherited land that was purchased for \$50,000 in 1967. The value of the land incr
A baseball player gets 7 hits in the first 15 games of the season. If he continues hitting at the sa
A wildlife reserve has a population of 180 elephants. A group of researchers trapped 60 elephants an
Stock A is worth 4.5. Stock B is worth 8.0. Stock C is worth 10.0. She purchased half as many shares
The value of 3 times the quantity of 4 + x is greater than 6 less than x.
A brand new car that is originally valued at \$25,000 depreciates by 8% per year. What is the value o
Students stuff envelopes for extra money. Their initial cost to obtain the information for the job w
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes
log5 = 0.699, log2 = 0.301. Use these values to evaluate log40
Suppose that you have just purchased a car for \$40,000. Historically, the car depreciates by 8% each
A grandmother deposited \$5,000 in an account that pays 8% per year compounded annually when her gran
You are buying boxes of cookies at a bakery. Each box of cookies costs \$4. In the equation below, c
An ordinary fair die is rolled twice. The face value of the rolls is added together. Compute the pro
An alligators tail length, T, varies directly as its body length, B. An alligator with a body length
Sara opened an account with \$800 and withdrew \$20 per week. Jordan opened an account with \$500 and d
Levi invested \$630 in an account paying an interest rate of 4.6% compounded daily. Assuming no depos
Ning prepared 16 kilograms of dough after working 4 hours. How many hours did Ning work if he prepar
If 2 ounces goes into 100 gallons how many ounces is needed for 3000 gallons
A movie theater has a seating capacity of 143. The theater charges \$5.00 for children, \$7.00 for stu
A dress is on sale for \$33. This is 3/5 of the regular price. What is the regular price?
Kaitlin is a software saleswoman. Let y represent her total pay (in dollars). Let x represent the nu
A math test is worth 100 points and has 38 problems. Each problem is worth either 5 points or 2 poin
Carly grew 50 plants with 25 seed packets. With 37 seed packets, how many total plants can Carly hav
There is a ratio of 5 girls to 3 boys in the chorus. There are 24 boys in the chorus.How many girls
A spinner is divided into 4 equal sections numbered 1 to 4. The theoretical probability of the spinn
The ratio of men to women working for a company is 5 to 3 . If there are 75 men working for the
Annuity that pays 6.6% compounded monthly. If \$950 is deposited into this annuity every month, how m
In 2016, National Textile installed a new textile machine in one of its factories at a cost of \$300,
If approximately 68% of the scores lie between 40.7 and 59.9, then the approximate value of the sta
You buy a house for \$130,000. It appreciates 6% per year. How much is it worth in 10 years