Question

The following are the last 10 run scores Colin got in cricket:

22, 35, 33, 18, 16, 12, 28, 18, 1, 16
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 10 runs.
What is his new mean score?
Give your answers as decimals.

Answer 1

a) 22+35+33+18+16+12+28+18+17 is 199, and 199 divided by 10 is 19.9, so 19.9 is the mean.

b) if he gets 10 more home runs, then he has 209 divided by 11 which is 19