Question 760424
Q:
Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard deviation 20. find P2 which is the IQ score separating the bottom 2% from the top 98%.
The IQ score that separates the bottom 2% from the top 98% is P2.
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A:
Enter the following formula into an Excel spreadsheet to get the answer:
=norminv(.02,105,20)
The answer is {{{highlight(63.925)}}}.