# Question

When was the last time you saw your doctor? That question was asked for the survey summarized in the following table.

a. Find the marginal totals.

b. Express the frequencies as percentages of the grand total.

c. Express the frequencies as percentages of each age group’s marginal totals.

d. Express the frequencies as percentages of each time period.

e. Draw a bar graph based on the grand total.

a. Find the marginal totals.

b. Express the frequencies as percentages of the grand total.

c. Express the frequencies as percentages of each age group’s marginal totals.

d. Express the frequencies as percentages of each time period.

e. Draw a bar graph based on the grand total.

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