# Normal Probability

Please help with the following probability problems.

In a survey of women in a certain country (ages 20-29), the mean height was 66.6 inches with a standard deviation of 2.71 inches. Answer the following questions about the specified normal distribution.

a) What height represents the 85th percentile in inches?

(Round to two decimals)

b) What height represents the first quartile?

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#### Solution Preview

Normal Distributions

In a survey of women in a certain country (ages 20-29), the mean height was 66.6 inches with a standard deviation of 2.71 inches. Answer the following questions about the specified normal distribution.

a) What height represents the 85th percentile in inches?

(Round to ...

#### Solution Summary

The solution provides step by step method for the calculation of probability based on Z score . Formula for the calculation and Interpretations of the results are also included.