Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the empiric
Posted: Sun Jul 10, 2022 10:51 am
Scores of an IQ test have a bell-shaped distribution witha mean of 100 and a standard deviationof 15. Use the empirical rule to determine thefollowing.
(a) What percentage of people has an IQ scorebetween 85 and 115?
(b) What percentage of people has an IQ score lessthan 85 or greater than 115?
(c) What percentage of people has an IQ score greaterthan 130?
(a) What percentage of people has an IQ scorebetween 85 and 115?
(b) What percentage of people has an IQ score lessthan 85 or greater than 115?
(c) What percentage of people has an IQ score greaterthan 130?