Question

If the mean value of x, 6,8,9and 12 is 8,then the value of x is...

Answer 1

Answer:

x = 4

Step-by-step explanation:

A.M= sum of all observations / totalno.ofobservations  

⇒8= 6+10+x+12 / 4  

⇒32=6+10+x+12

⇒x=32−28

⇒x=4