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Math Glossary Letter F
f test statistic
test statistic has an F-distribution under the null hypothesis
faces
flat surface forming part of the boundary of a solid object
factor by grouping
Group terms and factor out a GCF and common binomial
factor pairs
set of two numbers with a product resulting in a certain number
factorial
The product of an integer and all the integers below it
factoring polynomials
Factor a polynomial into the product of multiple polynomials/binomials/monomials
fahrenheit
Unit of temperature
falling object
math problems involving an object being dropped from a certain height
Feet
Unit of distance measurement, equal to 12 inches
Fermats Little Theorem
if p is a prime number, then for any integer a, the number ap - a is an integer multiple of p

ap ≡ a (mod p)
fibonacci numbers
Sequence of numbers starting with 0, 1, where the next number equals the sum of the last two numbers

Fn = Fn - 1 - Fn - 2
FIFO
First In First Out - inventory cost method where the cost associated with the inventory that was purchased first is the cost expenses first.
finance
study of investments
finite field
field containing a finite number of elements
fisher inverse
Inverse of the Fisher Transform

e2z - 1/e2z + 1
fisher transformation
Transform a set of numbers into a Gaussian distribution
fishers exact test
significance test used in the analysis of contingency tables
flat price
price of a bond without accrued interest
floor
the greatest integer that is less than or equal to x
floyds triangle
right-angled triangular array of natural numbers
flush
A hand in card games where all cards contain the same suit (hearts, spades, diamonds, clubs)
focus
fixed point on the interior of a parabola used in the formal definition of the curve
FOIL
First Outside Inside Last - A method for multiplying two binomials
fortnight
A unit of time equal to 14 days
forward price
price of an asset in a forward contract
forward rate
price of an asset in a forward contract
fraction
how many parts of a certain size exist
fractional indices
An exponent fraction
frequency
number of times a data value occurs
frequency analysis
number of times each letter is used in a phrase
frequency distribution
frequency measurement of various outcomes
function
relation between a set of inputs and permissible outputs
function test
Test where you draw a vertical line on a graph to make sure it only passes through one point
fundamental rule of counting
If there are m ways to do one thing, and n ways to do another, then there are m*n ways of doing both
Furlongs
distance measurement equal to 1/8 mile