Find the mean of the first 10 even integers.
(a) 11
(b) 9
(c) 12
(d) 10
Sol:
First 10 odd integers: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Mean = Sum of the first 10 odd integers/Number of such integers
= (2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20)/10
= 110/10 B
= 11
Therefore, the mean of the first 10 odd integers is 11.
