This question is from the book statistics 9th ed robert s. witte and john s. witte on page 81. Standard deviation
question 4.2B) Assume tha the distribution of IQ scores for all college students has a mean of 120, with a standard deviation of 15. These two bits of information imply which of the following?
All students score between 105 and 135 because everybody is within one standard deviation above or below the mean. True or False?