Question

Akera 28,20,18,15, ka parisar kay hoga

Answer 1

using formula:

sum of observation / total number of observation

=28+20+18+15/4

=81/4

=20.25

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Answer 2

Answer:

The mean of the given data is 20.25

Step-by-step explanation:

The numbers are given to be 28, 20, 18, 15

We need to find the mean of the given set of numbers.

So, to find mean :

First find the sum of all the numbers = 28 + 20 + 18 + 15

So, Sum of all the numbers = 81

Number of observations = 4

$Mean = \frac{\text{Sum of all the observations}}{\text{Number of observations}}\\\\\implies Mean=\frac{81}{4}\\\\\implies Mean = 20.25$

Therefore, The mean of the given data is 20.25