A rugby team played six games.
The mean score for six games is 15
The rugby team played one more game.
The mean score for all seven games is 16.
Work out the number of point the team scored in the seventh game.
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6
Answer:- 22
Step-by-step explanation:
mean = sum of all observations
__________________
no. of all observations
15 = sum of all observations
__________________
6
15×6 = sum of all observations
sum of all observations = 90
new mean = sum of all observations
__________________
new no. of observations
16 = sum of all obervations
_________________
7
16×7 = sum of all observations
sum of all observations = 112
no. of point team scored in seventh game = new sum of all observations - old sum of all observations
= 112 - 90
= 22
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