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A consumer group conducted a study regarding the number of hours of TV that teenagers watched per week. The cumulative frequencies of the sample were...

This question was answered on Jan 29, 2013. View the Answer
A consumer group conducted a study regarding the number of hours of TV that teenagers watched per week. The cumulative frequencies of the sample were as follows.

Hours per week Cumulative Frequency
0-4 7
5-9 25
10-14 49
15-19 77
20-24 120

What is the mean "weekly hours of TV watched" for the sample?
a.) .38
b.) 12
c.) 15.42
d.) 17
e.) 370

I know the answer is 15.42 please explain in detail how you got the answer.
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A consumer group conducted a study regarding the number of hours of TV that teenagers
watched per week. The cumulative frequencies of the sample were as follows.
Hours per week Cumulative...

This question was asked on Jan 29, 2013 and answered on Jan 29, 2013.

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