The body temperatures of a group of healthy adults have a bell-shaped distribution with a mean of 98.01 F and a standard deviation of 0.43F. Using the empirical rule, nd each approximate percentage below. a. What is the approximate percentage of healthy adults with body temperatures within 1 standard deviation of the mean, or between 97.58F and 98.44F'? b. What is the approximate percentage of healthy adults with body temperatures between 97.15F and 98.87F