The frequency distribution representing the number of frequent flier miles accumulated by employees at Brumley Statistical Consulting Company is repeated from Exercise 17.

a. How many employees accumulated less than 3,000 miles?

b. Convert the frequency distribution to a cumulative frequency distribution.

c. Portray the cumulative distribution in the form of a cumulative frequency polygon.

d. Based on the cumulative frequency polygon, about 75 percent of the employees accumulated how many miles or less?

Step 1 of 3

The given frequency distribution representing the number of frequent flier miles accumulated by the employees in a company.

Frequent Flier Miles (000) |
Frequency |

0 up to 3 |
5 |

3 up to 6 |
12 |

6 up to 9 |
23 |

9 up to 12 |
8 |

12 up to 15 |
2 |

Total |
50 |

By using the given information we have to find the following:

(a) The number of employees accumulated less than 3,000 miles.

(b) We have to convert the frequency distribution to a cumulative distribution.

(c) We have to draw a cumulative frequency polygon.

(d) Based on the cumulative frequency polygon, we have to find about 75 percent of the employee's accumulated how many miles or less.