The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 23 minutes and a

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The Amounts Of Time Per Workout An Athlete Uses A Stairclimber Are Normally Distributed With A Mean Of 23 Minutes And A 1 (57.35 KiB) Viewed 22 times

The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 23 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 23 and 32 minutes, and (c) more than 30 minutes. (a) The probability that a randomly selected athlete uses a stairclimber for less than 19 minutes is 0.2839. (Round to four decimal places as needed.) (b) The probability that a randomly selected athlete uses a stairclimber between 23 and 32 minutes is 0.4007". (Round to four decimal places as needed.) (c) The probability that a randomly selected athlete uses a stairclimber for more than 30 minutes is 0.1587 (Round to four decimal places as needed.)