Suppose that mean retail price per gallon of regular grade gasoline is $3.59 with a standard deviation of $0.10 and that
Posted: Sun Oct 03, 2021 11:05 am
Suppose that mean retail price per gallon of regular grade gasoline is $3.59 with a standard deviation of $0.10 and that the retail price per gallon has a bell-shaped distribution. NOTE: Please use empirical rule approximations for this problem, a. What percentage of regular grade gasoline sells for between $3.39 and $3.79 per gallon (to 1 decimal)? % b. What percentage of regular grade gasoline sells for between $3.39 and $3.69 per gallon (to 1 decimal)? % o c. What percentage of regular grade gasoline sells for less than $3.69 per gallon (to 1 decimal)? %