Empirical Rule Exploration

Answer the following questions: 1. What percent of the data is within one standard deviation of the mean? (hint: when a=-1 and b=1) 2. What percent of the data is within two standard deviations of the mean? (hint: when a=-2 and b=2) 3. What percent of the data is within three standard deviations of the mean? (hint: when a=-3 and b=3)