Question

The height of the JP adult male follows normal distribution with the mean = 75 inches...

The height of the JP adult male follows normal distribution with the mean = 75 inches and with the SD =5 inches, if I random choose an adult male,

(1) What is the probability to see the height of the selected people is at most (≤) equal to 85 inches.

(2) What is the probability to see this people’s height is between 60 and 80 inches?

Math   Statistics-And-Probability   
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Answer #1

(1) What is the probability to see the height of the selected people is at most (≤) equal to 85 inches.

The following information has been provided:

We need to compute . The corresponding z-value needed to be computed:

Therefore,

(2) What is the probability to see this people’s height is between 60 and 80 inches?

The following information has been provided:

We need to compute . The corresponding z-values needed to be computed are:

Therefore, we get:

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