A random sample of 40 gas stations in Baton Rouge after Hurricane Katrina resulted in a mean price of $3.02 per gallon with a standard deviation of $0.07. A histogram of the data indicated that the data followed a bell shaped distribution.
A) What percentage of the gas stations have prices that range from $2.88 to $3.16
B) What percentage of the gas stations have prices within one deviation of the mean?© BrainMass Inc. brainmass.com October 25, 2018, 3:59 am ad1c9bdddf
This solution is comprised of detailed explanation and step-by-step calculation of the given problem and provides students with a clear perspective of the underlying concept.
The solution gives detailed steps on determining the percentage of data using empirical rule.
Suppose the data have a bell shaped distribution with a mean of 30 and a standard deviation of 5. Use the empirical rule to determine the percentage of data within each of the following ranges: 20 to 40, 15 to 45, and 25 to 35.View Full Posting Details