The following are the number of books issued in a school library during a week:
105, 216, 322, 167, 273, 405 and 346.
Find the average number of books issued per day.

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Solution

Numbers of books issued in the school library: 105, 216, 322, 167, 273, 405 and 346
Thus, we have:

$Mean = \frac{Sum of observa tions}{Number of observations}$

$= \frac{105 + 216 + 322 + 167 + 273 + 405 + 346}{7} = \frac{346}{7} = 262$

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The following are the number of books issued in a school library during a week: 105, 216, 322, 167, 273, 405 and 346. Find the average number of books issued per day.

Numbers of books issued in the school library: 105, 216, 322, 167, 273, 405 and 346 Thus, we have: Mean =Sum of observationsNumber of observations =105+216+322+167+273+405+3467= 3467= 262

The following are the number of books issued in a school library during a week:
105, 216, 322, 167, 273, 405 and 346.
Find the average number of books issued per day.

Numbers of books issued in the school library: 105, 216, 322, 167, 273, 405 and 346
Thus, we have:

$Mean = \frac{Sum of observa tions}{Number of observations}$

$= \frac{105 + 216 + 322 + 167 + 273 + 405 + 346}{7} = \frac{346}{7} = 262$