The results of a consumer study completed at Corner Convenience Store are reported in the accompanying histogram.
Question:
The results of a consumer study completed at Corner Convenience Store are reported in the accompanying histogram. Answer each question.
a. What is the class width?
b. What is the class midpoint for the class 31–61?
c. What is the upper boundary for the class 61–91?
d. What is the frequency of the class 1–31?
e. What is the frequency of the class that contains the largest observed value of x?
f. What is the lower boundary of the class with the largest frequency?
g. How many pieces of data are shown in this histogram?
h. What is the value of the mode?
i. What is the value of the midrange?
j. Estimate the value of the 90th percentile, P90.
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Related Book For 
Just The Essentials Of Elementary Statistics
ISBN: 9780495314875
10th Edition
Authors: Robert Johnson, Patricia Kuby
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