In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 69.1 inches and a standard deviation of 4.0 inches. A study participant is randomly selected. Complete parts (a) through (d) below. (a) Find the probability that a study participant has a height that is less than 68 inches. The probability that the study participant selected at random less than 68 inches tall is. (Round to four decimal places as needed.)

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Chapter1: Combinatorial Analysis
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In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 69.1 inches and a standard deviation of 4.0 inches. A study participant is randomly selected. Complete
parts (a) through (d) below.
(a) Find the probability that a study participant has a height that is less than 68 inches.
The probability that the study participant selected at random
less than 68 inches tall is . (Round to four decimal places as needed.)
Transcribed Image Text:In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean of 69.1 inches and a standard deviation of 4.0 inches. A study participant is randomly selected. Complete parts (a) through (d) below. (a) Find the probability that a study participant has a height that is less than 68 inches. The probability that the study participant selected at random less than 68 inches tall is . (Round to four decimal places as needed.)
Assume the random variable x is normally distributed with mean u = 86 and standard deviation o = 4. Find the indicated probability.
P(76 <x<84)
.....
P(76 <x< 84) =
(Round to four decimal places as needed.)
Transcribed Image Text:Assume the random variable x is normally distributed with mean u = 86 and standard deviation o = 4. Find the indicated probability. P(76 <x<84) ..... P(76 <x< 84) = (Round to four decimal places as needed.)
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