The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a probability that a randomly selected athlete uses a stairclimber for (a) less than 17 minutes, (E (a) The probability that a randomly selected athlete uses a stairclimber for less than 17 minute (Round to four decimal places as needed.)

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The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 22 minutes and a standard deviation of 5 minutes. Find the
probability that a randomly selected athlete uses a stairclimber for (a) less than 17 minutes, (b) between 22 and 31 minutes, and (c) more than 30 minutes.
(a) The probability that a randomly selected athlete uses a stairclimber for less than 17 minutes is.
(Round to four decimal places as needed.)
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Transcribed Image Text:Question Help ▼ The amounts of time per workout an athlete uses a stairclimber are normally distributed, with a mean of 22 minutes and a standard deviation of 5 minutes. Find the probability that a randomly selected athlete uses a stairclimber for (a) less than 17 minutes, (b) between 22 and 31 minutes, and (c) more than 30 minutes. (a) The probability that a randomly selected athlete uses a stairclimber for less than 17 minutes is. (Round to four decimal places as needed.) ts pur ESS ess brai Enter your answer in the answer box and then click Check Answer. Check Answer Clear All cions 2 parts remaining e here to search
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16. Find the probability that a randomly selected utility bill is
(a) less than $70, (b) between $83 and $100, and (c) more than $130.
(a) The probability that a randomly selected utility bill is less than $70 is
(Round to four decimal places as needed.)
nts
our
ess
cess
Librai Enter your answer in the answer box and then click Check Answer.
otions 2 parts
remaining
Clear All
Check Answer
(?
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144
14
ts do
Transcribed Image Text:The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $16. Find the probability that a randomly selected utility bill is (a) less than $70, (b) between $83 and $100, and (c) more than $130. (a) The probability that a randomly selected utility bill is less than $70 is (Round to four decimal places as needed.) nts our ess cess Librai Enter your answer in the answer box and then click Check Answer. otions 2 parts remaining Clear All Check Answer (? pe here to search 144 14 ts do
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