Question

The mean of the 2,7,6 and x is 15 and the mean of 18,1,6,x and y is 20 what is the valuse of y

Answer 1

Answer:

X=45

Y=30

Step-by-step explanation:.

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Answer 2

Step-by-step explanation:

Mean=sum of all observations

2

2+7+6+x=15

4

2+7+6+x=60

15+x=60

x=45

Similarly,

18+1+6+x+y=20

5

25+45+y=100

y=70