Find the mean of the following data: $18, 33, 30, 21$ and $13$ .

18

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23

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25

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15

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Solution

The correct option is C $23$
Given set of data is $18, 33, 30, 21, 13$
Arranging the data in ascending order, we get $13, 18, 21, 30, 33$
No of terms(numbers) $= n = 5$
Mean $= \frac{Sum of numbers}{n}$
$= \frac{13 + 18 + 21 + 30 + 33}{5} = \frac{115}{5} = 23$
Thus, Mean of given data is $23$ .
Hence, option B is correct.

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Similar questions

Find the mean of following data :

18 , 33 ,30 ,21 and 13 .

Also find the sum of deviation of this data from the mean

x:	19	21	23	25	27	29	31
f:	13	15	16	18	16	15	13

Find the mean of the following data:

$\begin{matrix} x : & 19 & 21 & 23 & 25 & 27 & 29 & 31 f : & 13 & 15 & 16 & 18 & 16 & 15 & 13 \end{matrix}$

18

19 - 21

Class	$11 - 13$	$13 - 15$	$15 - 17$	$17 - 19$	$19 - 21$	$21 - 23$	$23 - 25$
Frequency	$3$	$6$	$9$	$13$	$f$	$5$	$4$

12, 14, 15, 17, 18, 18, 20, 21, 23, 25, 25

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