The Gerber company sponsored a large survey of the eating habits of American infants and toddlers. Among the many questions parents were asked was whether their child had eaten fried potatoes on one given day. Here are the data broken down by the children's age range:

	Ate fried potatoes	Did not
9-11 months	61	618
15-18 months	62	246
19-24 months	82	234

(a) Use the marginal distributions to indicate the relative share of each age group in the total sample and the proportion of the total sample that ate and did not eat fried potatoes.

(b) Use the conditional distribution by rows (only) to indicate the proportions of each age group that did and did not eat fried potatoes.

(c) What are the odds that each of these age groups ate fried potatoes on the day in question?

(d) What is the odds ratio of the 15-18 month group compared to the 19-24 month group?