#1 Using the empirical rule. The mean speed of a sample of vehicles along a stretch of a highway is 64 miles per hour, with a standard deviation of 4 miles per hour. Estimate the percent of vehicles whose speed are between 52 miles per hour and 76 miles per hour. (Assume the data set gas bell-shaped distribution.) #2 For a sample with n=36, the mean duration of a geyser's eruptions is 3.42 minutes and the standard deviation is 1.02 minutes. Using chebychevs theorem, determine at least how many of the eruptions lasted between .36 and 6.48 minutes