The amounts of time per workout an athlete uses a stairclimber are normally​ distributed, with a mean of 24minutes and a standard deviation of 5 minutes. Find the probability that a randomly selected athlete uses a stair climber for​   (a) less than 21 ​minutes, (b) between 24 and 32 minutes (c) more than 40 minutes. ​

Q: how much will the probability that the students are aged above 15 years old change?

A:

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.