statistics informed decisions using data Micheal Sullivan Section 3.2 #24

Overview

1. Determine the sample standard deviation length of eruption.
   Express your answer rounded to the nearest whole number.
2. On the basis of the histogram drawn in Section 3.1, Problem 26, comment on the appropriateness of using the Empirical Rule to make any general statements about the length of eruptions.
3. Use the Empirical Rule to determine the percentage of eruptions that last between 92 and 116 seconds. Hint: