Question

the mean of 5 observations x,x+2,x+4,x+6 and x+8 is 11, then the value of x is:
a) 4
b) 7
c)11
d)6​

Answer 1

Answer:

it's 9

(x+x+2+x+4+x+6+x+8)/5=11

5x+20= 55

x+4=11

x=7

now,( 7+9+11)/3= 9

Answer 2

Step-by-step explanation:

answer to this question is 7