In a relative frequency histogram for a large set of GPAs, the mean and the standard deviation are 2.10 and 0.21 respectively. What proportion of GPAs falls within 1.68 and 2.52? What about the proportion of measurements that are at most 1.89? Discuss how you arrived at these results.
This solution calculates the probability of the GPAs falling within 1.68 and 2.52 and the proportion of measurements are at most 1.89 using the mean and standard deviation. All steps are shown in an Excel file with full formulas.