Question

The Energy Information Administration reported that the mean retail price per gallon of regular grade gasoline was $3.49 . Suppose that the standard deviation was $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 sold between $3.29 and $3.59 per gallon (to 1 decimal)?

95.0 %

b. What percentage of regular grade gasoline sold between $3.29 and $3.59 per gallon (to 1 decimal)?

81.5 %

c. What percentage of regular grade gasoline sold for less than $3.69 per gallon (to 1 decimal)?

........ %

i want you to find part C , Part A and B are correct answers i want you to find answer for part C thank you

Answer 1