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

19, 15, 34, 29, 13, 35, 10, 19, 14, 22

a) Work out Colin's mean score.

b) Colin plays cricket again on Sunday. He gets 21 runs.

What is his new mean score?

a) 21

b) 21

Step-by-step explanation:

Given 10 scores: 19, 15, 34, 29, 13, 35, 10, 19, 14, 22

a) Mean

= (sum of scores) / number of scores

= (19+15 + 34 + 29 + 13 + 35 + 10 + 19 + 14 + 22) / 10

= 210 / 10

= 21

b) one more score of 21 is added

hence

number of scores = 10 + 1 = 11

sum of scores = 210 + 21 = 231

Mean = (sum of scores) / number of scores

= 231 / 11

= 21