Posted by Anonymous on Tuesday, February 14, 2012 at 8:28pm.
On standard IQ tests, the mean is 110 and the standard deviation is 15. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is less than 155.

Statistics  PsyDAG, Wednesday, February 15, 2012 at 11:31am
Use the same process as indicated in my response to your previous post.

Statistics  VILMA CONSIGLIO, Monday, May 7, 2012 at 10:46am
Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you present and why?
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