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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If a certain statistician has an IQ of 122, what percent of the population has an IQ less t…

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If a certain statistician has an IQ of 122, what percent of the population has an IQ less t…
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IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If a certain statistician has an IQ of 122, what percent of the population has an IQ less than she does?

asked
User Ismael Miguel
by
7.5k points

2 Answers

2 votes

Answer:

93%

Explanation:

answered
User Douglas Correa
by
8.6k points
4 votes
You have to use a z-table for that but it is somewhere around 90%.
answered
User Mdolbin
by
7.5k points
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