11 - JustAnswer
11. The following frequency distribution reports the number of frequent flier miles, reported in thousands, for employees of Brumley Statistical Consulting, Inc. during the first quarter of 2004.
Frequent Flier Miles
Number of (000) Employees
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 were studied?
There were 50 employees studied.
b. What is the midpoint of the first class?
The first class is 0 up to 3. Thus the midpoint is 1.5 (thousands of miles)
c. Construct a histogram.
[pic]
d. A frequency polygon is to be drawn. What are the coordinates of the plot for the first class?
The coordinates of the plot for the first class is (1.5, 5)
e. Construct a frequency polygon.
[pic]
f. Interpret the frequent flier miles accumulated using the two charts.
The shape of the distribution of frequent flyer miles is symmetric with a peak in the middle class 6 up to 9. That is, the distribution is centered between 6 and 9. The range is between 0 and 15 thousand frequent flyer miles although relatively few employees have fall into the 0-3 or 12-15 category.
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