200 chemistry students take a test. Use the Empirical Rule to find the number of scores falling into each of the following intervals: a. Within 1 standard deviation of the mean. b. Within 2 standard...

200 chemistry students take a test. Use the Empirical Rule to find the number of scores falling into each of the following intervals:

a.
Within 1 standard deviation of the mean.

b.
Within 2 standard deviations of the mean.