Mathematics, 19.06.2020 20:57 graceshort7orepzg
The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 24 minutes and a standard deviation of 7 minutes. Find the probability that a randomly selected athlete uses a stairclimber for
(a) less than 19 minutes,
(b) between 24 and 33 minutes, and
(c) more than 40 minutes.
Which event is unusual?
Answers: 3
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