Question

If the mean of 3,5,0,9,x,7 and 13 is 7, the value of x is

Answer 1

Answer:

mean = sum of observations/no. of observations

7= 3+5+0+x+7+13/6

7= 28+x/6

7×6= 28+x

42-28 = x

14 = x is the answer

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Answer 2

Answer:

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