The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of 98.35 F and a standard deviation of 0.61 F. Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of healthy adults with body temperatures within 2 standard deviations of the mean, or between 97.13 F and 99.57 F? b. What is the approximate percentage of healthy adults with body temperatures between 97.74 F and 98.96 F? a. Approximately % of healthy adults in this group have body temperatures within 2 standard deviations of the mean, or between 97.13 F and 99.57F. (Type an integer or a decimal. Do not round.) b. Approximately % of healthy adults in this group have body temperatures between 97.74 F and 98.96 F. (Type an integer or a decimal. Do not round.)