Question

7.If the mean of 5 observations x,x+2,x+4,x+6 and x+8 is 11.Find the value of x.​

Answer 1

Answer:

here,

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

=> x+x+2+x+4+x+6+x+8=11*5=55

=> 5x+20=55

=> 5x=55-20=35

=> x=35/5=7

=> x=7

the value of x=7