Use a frequency distribution to approximate the mean age of the 50 most powerful women listed on
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Use a frequency distribution to approximate the mean age of the 50 most powerful women listed on page 39.
Class Frequency, f
26 – 34 ………….. 2
35 – 43 ………….. 5
44 – 52 ………….. 12
53 – 61 ………….. 18
62–70 ………….. 11
71–79 ………….. 1
80 – 88 ………….. 1
a. Find the midpoint of each class.
b. Find the sum of the products of each midpoint and corresponding frequency.
c. Find the sum of the frequencies.
d. Find the mean of the frequency distribution.
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a b c d x f N 2742 50 548 Class 2634 ...View the full answer
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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