Question

the mean of 6,y,7,x is 16 then find x+y​

Answer 1

Answer:

mean = sum of all observations ÷total no. of observations

16 =( x + y + 13)/4

64 = x + y + 13

x + y = 64-13

x + y = 51

Answer 2

mean = 16 and N = 4 then,

mean = (6 + y + 7 + x )/4

or, 16 = (13 + x + y )/ 4

or, 16 × 4 = 13 + x + y

or, 64 - 13 = x + y

x + y = 51