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5 people were asked about the time in a week they spend doing social work in the community. They said 10, 7, 13, 20, and 15 hours, respectively. Find the mean for the average time in a week devoted by them to social work.
  • a)
    10 hrs
  • b)
    11 hrs
  • c)
    12 hrs
  • d)
    13 hrs
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
5 people were asked about the time in a week they spend doing social w...
Mean of the average time spent in a week by the 5 people doing social work can be found by using the formula:

Mean = (Sum of all observations) / (Total number of observations)

Here, the sum of all observations is:

10 + 7 + 13 + 20 + 15 = 65

And the total number of observations is 5.

So, the mean is:

Mean = 65 / 5 = 13 hrs

Therefore, the correct option is D, which is 13 hrs.
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5 people were asked about the time in a week they spend doing social work in the community. They said 10, 7, 13, 20, and 15 hours, respectively. Find the mean for the average time in a week devoted by them to social work.a)10 hrsb)11 hrsc)12 hrsd)13 hrsCorrect answer is option 'D'. Can you explain this answer?
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