Swimmer on 4x100 relay team each swim 100 meter, and their individual times are totaled to form their overall team time. A particular team records how long it takes each swimmer to complete their portion of the race each time they swim 100 meters in practice and competitions.
Here are summary statistics for each swimmer's times:
Let T= total time it takes this team to finish a randomly selected 4x100 relay.
Find the mean of T
ut= seconds