Question

If the mean of the following distribution is 6, then find the value of a. xi 2, 4, 6, 10, a+5 fi 3, 2, 3, 1, 2.

Answer 1

Answer:

Sigma fi=11

Sigma fixi= 52+2a

Mean= sigma fixi/sigma fi

6 = 52+2a/11

a = 7

Answer 2

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