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Q.

What is the mean of 15,0,10,5?


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a

15

b

10

c

5

d

7.5  

answer is D.

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Detailed Solution

The given data is 15,0,10,5.
We need to find its mean.
The formula of average is =Sum of observationsNumber of observations .
On substituting the numbers in the formula, we get
=15+0+10+54
=304
=7.5 Thus, the mean of the given data is 7.5.
Therefore, the correct option is 4.
 
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What is the mean of 15,0,10,5?