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The accompanying table shows a portion of the average price

The accompanying table shows a portion of the average price for a gallon of gas for the 50 states during April 2012. The entire data set, labeled Gas_Prices_2012, can be found on the text website.

State .... Price per Gallon

Alabama .... $4.36

Alaska ... 3.79

: :

Wyoming .. 3.63

a. Construct a frequency distribution and histogram for the average gas prices. Use six classes with upper limits of $3.70, $3.90, etc.

b. Is the distribution symmetric? If not, is it positively or negatively skewed?

c. Which class interval had the highest frequency?

d. Given your results from (a), construct an ogive.

Approximate the percentage of states that had average gas prices of $3.90 or less. Approximate the number of states that had average gas prices greater than $3.90.

State .... Price per Gallon

Alabama .... $4.36

Alaska ... 3.79

: :

Wyoming .. 3.63

a. Construct a frequency distribution and histogram for the average gas prices. Use six classes with upper limits of $3.70, $3.90, etc.

b. Is the distribution symmetric? If not, is it positively or negatively skewed?

c. Which class interval had the highest frequency?

d. Given your results from (a), construct an ogive.

Approximate the percentage of states that had average gas prices of $3.90 or less. Approximate the number of states that had average gas prices greater than $3.90.

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