The following are the last 10 run scores Colin got in cricket:
16, 19, 30, 10, 21, 24, 5, 10, 29, 25
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 31 runs.
What is his new mean score?
Give your answers as decimals.

Step-by-step explanation:

The formula for calculating mean is

Mean = Sum of items(run scores)/ number of items(runs)

a) number of run scores = 10

Mean = (16 + 19 + 30 + 10 + 21 + 24 + 5 + 10 + 29 + 25)/10

Mean = 189/10 = 18.9

b) since Colin plays cricket again on Sunday, the number of runs will increase.

new number of run scores = 10 + 1 = 11

New sum of run scores = 189 + 31 = 220

New mean = 220/11 = 20

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step-by-step explanation:

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step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

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