Examples

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Last updated at May 29, 2018 by Teachoo

Example 10 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 Mean time in a week devoted = (ππ’π ππ πππ π‘βπ πππ πππ£ππ‘ππππ )/(πππ‘ππ ππ’ππππ ππ πππ πππ£ππ‘ππππ ) = (10 + 7 + 13 + 20 + 15)/5 = 65/5 = 13