Question

If the sum of 15 observatio n is 480. Find its mean

Answer 1

Sum of observations =480
Number of observations =15
Mean=Sum of observations /Number of observations
=480/15
=32

Answer 2

The required mean = 32

Given :

The sum of 15 observations of a data is 480

To find :

The mean

Solution :

Step 1 of 2 :

Write down the given data

Here it is given that sum of 15 observations of a data is 480

Number of observations = 15

Sum of the observations = 480

Step 2 of 2 :

Find the mean

The required mean

$\displaystyle \sf{ = \frac{Sum \: of \: the \: observations}{Number \: of \: observations} }$

$\displaystyle \sf{ = \frac{480}{15} }$

$\displaystyle \sf{ = 32}$

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