The following table lists a portion of the average price (in $) for a gallon of gas for the 50 states and the District of Columbia as reported by AAA Gas Prices on January 2, 2019. 

a. Construct the frequency distribution and the histogram for the average price of gas. Use six intervals with widths of 1.70 < x ≤ 2.00; 2.00 < x ≤ 2.30; etc. Which interval had the highest frequency? How many of the states had average gas prices greater than $2.60?

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

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State Price Alabama 1.94 Alaska 3.06 I Wyoming 2.59