Recall that the file Supermarket Transactions xlsx contains data on over
Recall that the file Supermarket Transactions.xlsx contains data on over 14,000 transactions. There are two numerical variables, Units Sold and Revenue. The first of these is discrete and the second is continuous. For each of the following, do whatever it takes to create a bar chart of counts for Units Sold and a histogram of Revenue for the given subpopulation of purchases.
a. All purchases made during January and February of 2008.
b. All purchase made by married female homeowners.
c. All purchases made in the state of California.
d. All purchases made in the Produce product department.

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