The following table lists a portion of the average price (in $) for a gallon of gas

Question:

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 28, 2020.

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a. Construct the frequency distribution for the average price of gas. Use six intervals with widths of 2.00 < x ≤ 2.30; 2.30 < x ≤ 2.60; etc. Which interval had the highest frequency? How many of the states had average  gas prices greater than $2.90?

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

State Price
Alabama2.27
Alaska2.98
Arkansas2.24
Arizona2.82
California3.53
Colorado2.56
Connecticut2.64
District of Columbia2.67
Delaware2.25
Florida2.43
Georgia2.36
Hawaii3.67
Iowa2.31
Idaho2.59
Illinois2.61
Indiana2.38
Kansas2.24
Kentucky2.35
Louisiana2.22
Massachusetts2.56
Maryland2.42
Maine2.53
Michigan2.39
Minnesota2.40
Missouri2.16
Mississippi2.21
Montana2.52
North Carolina2.34
North Dakota2.44
Nebraska2.39
New Hampshire2.46
New Jersey2.58
New Mexico2.38
Nevada2.97
New York2.69
Ohio2.45
Oklahoma2.22
Oregon2.98
Pennsylvania2.71
Rhode Island2.55
South Carolina2.23
South Dakota2.42
Tennessee2.28
Texas2.18
Utah2.60
Virginia2.31
Vermont2.64
Washington3.10
Wisconsin2.38
West Virginia2.49
Wyoming2.57
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