Recall that the file Supermarket Transactions.xlsx contains over 14,000 transactions made by supermarket customers over a period of approximately two years. Use Excel filters to answer the following questions.
a. What proportion of these transactions is made by customers who are married?
b. What proportion of these transactions is made by customers who do not own a home?
c. What proportion of these transactions is made by customers who have at least one child?
d. What proportion of these supermarket customers are single and own a home?