Question

If the mean of 6,7,x,8,y,14 is 9 then find x+y

Answer 1

$\frac{6+7+8+14+x+y}{6}$ = 9
6+7+8+14+x+y = 54
x+y = 19

Answer 2

Answer:

Value of x+y = 19

Step-by-step explanation:

Given data 6,7,x,8,y,14 .

Mean of the data = 9

Number of observations = 6

$Mean = 9$

$\implies \frac{sum \:of \: the \: observations }{Number \: of \: observations }= 9$

$\implies \frac{6+7+x+8+y+14}{6}=9$

$\implies \frac{35+x+y}{6}=9$

$\implies 35+x+y = 9\times 6$

$\implies x+y = 54 - 35$

$\implies x+y = 19$

Therefore,

Value of x+y = 19

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