Question

Find the value of x if the mean of:
(a) 3, 5, x, 17, 12 and 20 is 15​

Answer 1

Step-by-step explanation:

3+5+x+17+12+20/6=15

57+x/6=15

57+x=90

x=33

Answer 2

Answer:

x = 33

Step-by-step explanation:

Mean = sum of all observations ÷ total numb number of observations

15 = 3 + 5 + x + 17 + 12 + 20 ÷ 6

90 = 57 + x

x = 33

HOPE THIS HELPS YOU......