Math, asked by Anas11111111, 1 year ago

The mean of 10,12,18,13,K and 17 is 15.Find the value of K?

Answers

Answered by abhi569
9
As we know that mean = (sum of observations)/(no. of observation)

Here,


15 = (10+12+18+13+k+17)/6

15*6 = 70+k 

90 = 70+k

90-70 = k

20= k


 i hope this will help you

-by ABHAY
Answered by sriashy08
7
mean=sigma x/n

15=10+12+18+13+K+17/6
90=70+k
k=90-70
k=20
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