Calculate the mean of the following data set.
15, 13, 19, 18, 17, 15, 15, 11, 16, 19, 18, 17, 15

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Solution

The correct option is A 16
$M e a n =$ $\frac{sum of the observations}{number of observations} = \frac{15 + 13 + 19 + 18 + 17 + 15 + 15 + 11 + 16 + 19 + 18 + 17 + 15}{13} = \frac{208}{13} = 16$

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Similar questions

Draw frequency distribution table for the following data :

$14, 18, 14, 17, 15, 15, 17, 15, 14, 14, 19, 17, 20, 20, 15, 16, 17, 18, 18, 16$ ,

$20, 16, 16, 16, 17, 19, 14, 20, 14, 18, 17, 15, 14, 17, 16, 17, 16, 15, 20$ .

Find the mean of the following data

$11, 12, 13, 14, 15, 16, 17, 18, 19, 20$

$11$	$19$	$20$	$11$	$12$
$16$	$15$	$19$	$18$	$13$

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