The mean prices (in dollars) of regular gasoline in the 50 states on April 27, 2014, are described by the boxplot in Fig. 102.

a. Estimate the mean price of regular gasoline in Hawaii, which has the highest mean price of the 50 states.
b. What percentage of states have a mean regular gasoline price that is at least $3.76?
c. What percentage of states have a mean regular gasoline price that is less than $3.76?
d. Add the results you found in parts (b) and (c). Explain why the sum should be 100%.
e. Estimate the number of states that have mean regular gasoline prices between $3.48 and $3.76.

Transcribed Image Text:

Mean Prices of Regular Gasoline 3.2 3.4 3.6 3.8 4 4.2 4.4 Dollars