Question

If sum of deviations from 15 for 10 values is 25. The Arithmetic Mean is;

Answer 1

Answer:

15.7

We know that

Mean=

number o fobservation

sum of observation

Since, the sum of observation is =7

Number of observation =10

Therefore,

Mean=

10

7

=0.7

But, here observation starts from =15

Therefore,

Mean=15+0.7=15.7

Hence, the mean is 15.7.

Explanation:

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