17 and 3 = 20
71
15 + 17 + 19 = 3 x 17 = 51
Sum = 85 Number = 5 So mean = 85/5 = 17
20 & 3
32 + 20 = 4 x (8 + 5)
43
17 and 3 = 20
3 + 17 = 20
It is: 3+17 = 20
3 and 17
7+3=10 17+3=20 17+13=30
the sum would be 1/4 + 3/5 = 5/20 + 12/20 = 17/20
71
15 + 17 + 19 = 3 x 17 = 51
Sum = 85 Number = 5 So mean = 85/5 = 17
20 & 3