The frequency distribution representing the number of frequent flier miles accumulated by employees at Brumley Statistical Consulting

Question:

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

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


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% of the employees accumulated how many miles or less?

Distribution
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