The ages of members of an Olympic water polo team are: 22, 25, 23, 28, 29, 21, 20, 26.
MATHEMATICS · Multi-part · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation
Problem
The ages of members of an Olympic water polo team are: 22, 25, 23, 28, 29, 21, 20, 26.
(1) Calculate the mean and population standard deviation for this group.
(2) The same team members are chosen to play in the next Olympic Games 4 years later. Calculate the mean and population standard deviation of their ages at the next Olympic Games.
(3) Comment on your results in general terms.