Question

Find the value of mean if Sigma x i f i if 1143 and n =45

Answer 1

Answer:

25.4

................

Mean = Sigma xi fi/n

= 1143/45

= 25.5

_________________&___

Answer 2

Given:-

£xifi = 1143

N = 45

To find:-

Mean

We know that,

Mean = £xifi / N

Mean = 1143/45

Mean = 25.4

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