Question

the mean of 6 ,8 ,3x +2 ,10, 2x and 5 is 9 . find value of x

Answer 1

Step-by-step explanation:

mean = sum of observations / number of observations

mean = 6+8+(3x+2)+ 10+ (2x) + 5/6 =9

31+5x =54

5x = 54-31

5x =23

x = 23/5