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.

Transcribed Image Text:

Time Since Last Consultation 6 Months to 1 Year 192 288 Less Than Less Than Year or More 295 218 259 6 Months Younger thon 28 years13 unger han 28 years Older than 40 574 653 Age 28-40