
Mark M. answered 04/07/21
Mathematics Teacher - NCLB Highly Qualified
28.10% has a z score of -0.58.
By extrapolation, -0.583
-0.583 = (X - 100) / 15
Can you solve for X and answer?
Carlann F.
asked 04/07/21IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ score of someone who scores below exactly 28% of the population.
Mark M. answered 04/07/21
Mathematics Teacher - NCLB Highly Qualified
28.10% has a z score of -0.58.
By extrapolation, -0.583
-0.583 = (X - 100) / 15
Can you solve for X and answer?
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