The body temperatures of a group of healthy adults have a bell shaped distribution with a mean of 98 11 F and a standard deviation of 0 51 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 09 F and 99 13 F b What is the approximate percentage of healthy adults with body temperatures between 96 58 F and 99 64 F a Approximately of healthy adults in this group have body temperatures within 2standard deviations of the mean or between 97 09 and 99 13 F Type an integer or a decimal Do not round b Approximately of healthy adults in this group have body temperatures between 96 58 F and 99 64 F Type an integer or a decimal Do not round