Question

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

2424

minutes and a standard deviation of

66

minutes. Find the probability that a randomly selected athlete uses a stairclimber for (a) less than

2121

minutes, (b) between

2424

and

3333

minutes, and (c) more than

4040

minutes.

(a) The probability that a randomly selected athlete uses a stairclimber for less than

2121

minutes is

nothing.

(Round to four decimal places as needed.)

(b) The probability that a randomly selected athlete uses a stairclimber between

2424

and

3333

minutes is

nothing.

(Round to four decimal places as needed.)

(c) The probability that a randomly selected athlete uses a stairclimber for more than

4040

minutes is

nothing.

(Round to four decimal places as needed.)

Answer #1

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 7 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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(a) The probability that a randomly selected utility bill is
less than $67 is nothing. (Round to four decimal places as
needed.)
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22.7
and a standard deviation of
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Complete parts (a) through (d) below.
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The probability of a student scoring less than
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is
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(Round to four decimal places as needed.)
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The lengths of a particular animal's pregnancies are
approximately normally distributed, with mean
muμequals=265265
days and standard deviation
sigmaσequals=1616
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285285
days?(b) What proportion of pregnancies lasts between
253253
and
273273
days?(c) What is the probability that a randomly selected
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237237
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The times per week a student uses a lab computer are normally
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(b) Find the probability that the student uses a lab computer
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(c) Find the probability that the student uses a lab...

Assume that women's heights are normally distributed with a
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A study found that the mean amount of time cars spent in
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A population is normally distributed with
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a.
Find the probability that a value randomly selected from this
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b.
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c.
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