Question

The following are the last 10 run scores Colin got in cricket. Calculate his mean score.

a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 29 runs. What is his new mean score? Give your answers as decimals

Answer 1

Colin's mean score is 18.5. His new mean score, after getting 29 runs, is 19.45.

Step-by-step explanation:

To calculate the mean score of Colin, we need to sum up all his scores and divide it by the total number of scores. Let's calculate:

Mean score = (12 + 17 + 23 + 15 + 19 + 21 + 11 + 14 + 18 + 25 + 29) / 10 = 185 / 10 = 18.5

So, Colin's mean score is 18.5.

If Colin gets 29 runs on Sunday, we can incorporate this new score to calculate his new mean score. Let's calculate:

New mean score = (185 + 29) / (10 + 1) = 214 / 11 = 19.45

Therefore, Colin's new mean score, after getting 29 runs, is 19.45.