Question

2. The frequency distribution representing the number of frequent flier miles accumulated by employees at Brumley Statistical Consulting Company is repeated from Exercise 11. (7 marks) Frequency Frequent Flier Miles (000) o up to 3 3 up to 6 6 up to 9 9 up to 12 12 up to 15 Total 5 12 23 8 2 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 percent of the employee's accumulated how many miles or less?

Answer 1

a) From the frequecy distribution table, we conelude that 5 employees accumulated less than 3,000 miles. b) Cumulative frequency distribution :- Frequente Flier Miles (000) Frequency Cumulative frequeney 0 up to B is up to 6 12 17 6 to 9 23 40 up up to 12 8 48 12 up to 15 2 50 Total 50

c) Cumulative polygon 50- 10 3 9 12 15 miles we can see d) Based on the above polygonowe that, about 75 percent of the employee's accumulated 9 miles on Jess.