Question

The Boston Security Analysts Society, Inc. (BSAS) is a non-profit association that serves as a forum for the exchange of ideas for the investment community. Suppose the ages of its members are based on the following frequency distribution.
Age ........ Frequency
21–31 ........ 11
32–42 ........ 44
43–53 ........ 26
54–64 ........ 7

a. Calculate the mean age.
b. Calculate the sample variance and the sample standard deviation.



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  • CreatedJanuary 28, 2015
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