SOLUTION: The scores of adults on an IQ test are approximately Normal with mean 100 and standard deviation 15. Corinne scores 128 on such a test. She scores higher than what percent of all a

Algebra ->  Probability-and-statistics -> SOLUTION: The scores of adults on an IQ test are approximately Normal with mean 100 and standard deviation 15. Corinne scores 128 on such a test. She scores higher than what percent of all a      Log On


   



Question 460844: The scores of adults on an IQ test are approximately Normal with mean 100 and standard deviation 15. Corinne scores 128 on such a test. She scores higher than what percent of all adults?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
z=(128-100)/15
=1.867
Area under normal curve beyond 1.867 is .031
.
Ed