Statistics Question, statistics homework help

User Generated

Natryvp

Mathematics

Description

Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard deviation 20. Find Upper P9, which is the IQ score separating the bottom 9% from the top 91%. The IQ score that separates the bottom 9% from the top 91% is P9=


(Round to the nearest hundredth as needed.)

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Explanation & Answer

z = (x - 105)/20P(z < (x - 10...


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