A Find the number of classes that should be used
a. Find the number of classes that should be used to construct a frequency distribution and histogram for the bottle design ratings.
b. If we round up to the nearest whole rating point, show that we should employ a class length equal to 3.
c. Define the nonoverlapping classes for a frequency distribution.
d. Tally the number of ratings in each class and develop a frequency distribution.
e. Draw the frequency histogram for the ratings data, and describe the distribution shape.
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