Question

A.M. by deviation method the sum of 12 observations is 240, then mean is​

Answer 1

Given :-

• The sum of 12 observations = 240 .

To Find :-

• Find the mean ?

Solution :-

we know that,

• Mean = (sum of observation) / (number of observation)

we have given that,

• sum of observations = 240 .
• Number of observations = 12

so,

→ Mean = 240 / 12

→ Mean = 20 (Ans.)

Hence, Mean of observations is 20.

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Answer 2

Answer:

20

Step-by-step explanation:

given that

sum of 12 observations = 240

that means sum of observations=240

and no.of observations=12

We know that

mean=sum of observations/no.of observations

so,mean=240/12

=20

HENCE MEAN VALUE=20

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