Suppose scores on an IQ test are normally distributed. If the test has a mean of 100 and a standard deviation of 10, what is the probability that a person who takes the test will score between 90 and 110?

5 answers

wonderful program for your type of question.
Just enter the mean and sd ,then 90 and 110 for the 'between'
forgot the link

http://davidmlane.com/hyperstat/z_table.html
Cool, thanks!
Scores on an IQ test are normally distributed. If the test has a mean of 100 and a SD of 10, what is the probability that a person who takes the test will score between 90 and 110?
What is an IQ test