SOLUTION: Question-4 The amounts of time per workout an athlete uses a stair-climber are normally distributed, with a mean of 20 minutes and a standard deviation of 5 minutes. Find the pr

Question 1200092: Question-4
The amounts of time per workout an athlete uses a stair-climber are normally distributed, with a mean of 20 minutes and a standard deviation of 5 minutes. Find the probability that a randomly selected athlete uses a stair-climber for
a) less than 17 minutes
b) between 20 and 28 minutes
c) If 150 adults are randomly selected, how many would you expect to use the stair-climber for more than 30 minutes

Answer by ikleyn(52872) (Show Source): You can put this solution on YOUR website!
.

For (a) and (b), find all necessary instructions from this video-lesson
Normal Distribution: Calculating Probabilities {TI 84 Plus CE}
https://www.youtube.com/watch?v=IyEKEL9nm28

or from this textual description
https://cosmosweb.champlain.edu/people/stevens/WebTech/TIFiles/Chap6-TI-83.pdf

Happy learning and calculating (!)

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