One measure of intelligence is the Stanford-Binet Intelligence Quotient (IQ). A study of a certain population finds that IQ scores have a bell-shaped distribution with a mean of 115 and a standard deviation of 5. What percentage of persons has an IQ score greater than 120? Round your answer to the nearest integer.

Question

anonymous · Answer

idk.............

anonymous · Answer

Don't answer if you have nothing productive to say. 
Anyways you posted a similar problem and you got the answer to that one. Apply what you did to this problem to get the answer.

anonymous · Answer

they never told me how to understand it...when i looked at the book i could not understand the the graph.  I missed the class that this homework was due on.

anonymous · Answer

Last question it was the percent between one standard deviation. In this question you want the percent over 1 standard deviation.

anonymous · Answer

im really sorry but im still confused with the empirical rule it seems that there can only be three answers 68% 95% and 99.7% but that doesnt seem right