The body temperatures of a group of healthy adults have a​ bell-shaped distribution with a mean of 98.16 degrees F and a standard deviation of 0.65 degrees F. Using the empirical​ rule, find 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 97.51 degrees  F and 98.81 degrees​ F? b. What is the approximate percentage of healthy adults with body temperatures between 96.86 degrees F and 99.46 degrees​ F?

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