Statistics: Measures of Dispersion
1. The price for gas at ten locations is shown below.
$3.95, $3.98, $3.89, $3.86, $3.95, $3.94, $3.89, $4.05, $3.89, $3.82
a. Calculate the mean
b. Calculate the standard deviation
c. What percentage of data falls within one standard deviation of the mean?
d. What percentage of data falls within two standard deviation of the mean?