Question

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

5
,


3
,


9
,


11
,


4
,


28
,


0
,


30
,


0
,


23


a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 30 runs.
What is his new mean score?

Give your answers as decimals.

Answer 1

a) 9.3

b) 13

Explanation:

a) 5+3+9+11+4+28+0+30+0+23/10 = 9.3

b) 5+3+9+11+4+28+0+30+0+23+30/11 = 13