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OpenStudy (anonymous):
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Class Frequency 61-63 21 64-66 25 67-69 20 70-72 14 73-75 21
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OpenStudy (anonymous):
is this a sample or population?
OpenStudy (anonymous):
@skylar87 ?
OpenStudy (anonymous):
sample
OpenStudy (anonymous):
find the center of classes first
OpenStudy (anonymous):
|dw:1340427402306:dw|
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