~Shoto Todoroki here~
Colin's mean score of his 10 runs is 18.8.
Colin's new mean score after the game on Sunday is 20.
Mean is a measure of central tendency. It is used to describe a data set. It is the sum of a set of observations divided by the number of observations. It is also known as average.
Mean = sum of scores / total number of scores.
Colin's mean scores can be determined by dividing the sum of scores by total number of scores.
Sum of scores = (20 + 29 + 34 + 19 + 8 + 12 + 0 + 23 + 29 + 14) = 188
Number of scores = 10
Mean of scores = 188 / 10 = 18.8
Colin's new mean score can be determined by adding 32 to the sum of scores already determined and dividing the sum by the total number of scores.
New sum of scores = 188 + 32 = 220
Number of scores = 11
Mean scores = 220 / 11 = 20
hope this helps :D