Question 11:In a recently administered IQ test, the scores were distributed normally, with mean 100 and standard deviation 15. What proportion of the test takers scored between 70 and 130? About 68%. About 84%. About 95%. About 99.5%.
Question 11:In a recently administered IQ test, the scores were distributed normally, with mean 100 and standard deviation 15. What proportion of the test takers scored between 70 and 130? About 68%. About 84%. About 95%. About 99.5%.