Question
5 people were asked about the time in a week they spend in doing social work in their community. They said 10, 7, 13, 20 and 15 hours, respectively. Find the mean (or average) time in a week devoted by them for social work.
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Question 1
Suppose a population A has 100 observations 101, 102, .., 200 and another population B has 100 observations 151, 152,..,250. If represent the variances of the two populations, respectively, then is equal toQuestion Text | 5 people were asked about the time in a week they spend in doing social work in their community. They said 10, 7, 13, 20 and 15 hours, respectively. Find the mean (or average) time in a week devoted by them for social work. |