1) On the assumption that IQ's are normally distributed in the population with a mean of 100 and a standard deviation of 15, answer the following questions: A. What percentage of the population has an...


1) On the assumption that IQ's are normally distributed in the population<br>with a mean of 100 and a standard deviation of 15, answer the following<br>questions:<br>A. What percentage of the population has an IQ<br>above 135?<br>B. If n-20,000, how many people would have an IQ<br>above 90?<br>C. What would be the IQ such that 30% of the<br>scores are below it?<br>D. What would be the IQ of a genius if a genius is<br>defined as someone whose IQ is at the top 2% of<br>the population?<br>

Extracted text: 1) On the assumption that IQ's are normally distributed in the population with a mean of 100 and a standard deviation of 15, answer the following questions: A. What percentage of the population has an IQ above 135? B. If n-20,000, how many people would have an IQ above 90? C. What would be the IQ such that 30% of the scores are below it? D. What would be the IQ of a genius if a genius is defined as someone whose IQ is at the top 2% of the population?

Jun 11, 2022
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