You entered a number set X of {-6,4,3,-9,2,8}

From the 6 numbers you entered, we want to build the Frequency Distribution Table:

We need to choose the smallest integer k such that 2

For k = 1, we have 2

For k = 2, we have 2

For k = 3, we have 2

Therefore, we use 3 intervals

Our maximum value in our number set of 8 - -9 = 17

Each interval size is the difference of the maximum and minimum value divided by the number of intervals

Interval Size = | 17 |

3 |

Add 1 to this giving us 5 + 1 = 6

Class Limits | Class Boundaries | FD | CFD | RFD | CRFD |
---|---|---|---|---|---|

-9 - -3 | -9.5 - -2.5 | 2 | 2 | 2/6 = 33.33% | 2/6 = 33.33% |

-3 - 3 | -3.5 - 3.5 | 1 | 2 + 1 = 3 | 1/6 = 16.67% | 3/6 = 50% |

3 - 9 | 2.5 - 9.5 | 3 | 2 + 1 + 3 = 6 | 3/6 = 50% | 6/6 = 100% |

6 | 100% |