Question

If n=10 and mean=12 then the valne of summatio fx is

Answer 1

n=10
Mean=12
mean=sum of observations/no of observations
12=sum of the observations /10
sum of the observations =12.10 =120
fx=120

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Answer 2

Answer:

n = 10

mean = 12

fx = 10 × 12

= 120