Colleen received a score of 100 on an IQ test. The mean for the test is 100 and the standard deviation is 15. Assume the test had a normal distribution of scores. Colleen's score on the test was equal to or greater than the scores of what percent of people?

For IQ tests, the IQ is standardized so that 100 is the average. An average person will have a higher score than 50 percent of the population.