SOLUTION: the mean of 1,2,x,11,y,14 is 8 and the median is 9. the value of x and y

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Question 1210665: the mean of 1,2,x,11,y,14 is 8 and the median is 9. the value of x and y
Answer by greenestamps(13370) About Me  (Show Source):
You can put this solution on YOUR website!


1, 2, x, 11, y, 14

The mean is 8:

%281%2B2%2Bx%2B11%2By%2B14%29%2F6=8
28%2Bx%2By=48
x%2By=20 [1]

The median is 9:

For a set with an even number of elements, the median is the average of the two in the middle.

%28x%2B11%29%2F2=9
x%2B11=18
x=7 [2]

Then

7%2By=20
y=13

ANSWERS: x=7; y=13