Percentiles for the standard normal distribution

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Reference no: EM131010461

Because P(z .44) = .67, 67% of all z values are less than .44, and .44 is the 67th percentile of the stan- dard normal distribution. Determine the value of each of the following percentiles for the standard normal distri- bution (Hint: If the cumulative area that you must look for does not appear in the z table, use the closest entry):

a. The 91st percentile (Hint: Lookforarea.9100.)

b. The 77th percentile

c. The 50th percentile

d. The 9th percentile

e. What is the relationship between the 70th z percen- tile and the 30th z percentile?

Reference no: EM131010461

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