contestada

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.