Question

if the mean of 2,3,x, and 6is4and the mean of 1,x,y and 15 is 7, then the value of y is​

Answer 1

Answer:

Mean = Sum of observations / Number of observations

Step-by-step explanation:

2+3+6+x/4=4

11+x=16

x=16-11=5

And, 1+x+y+15=7

1+5+y+15=7

21+y=7

y= 7-21=-14

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