24.12 Smoking by parents of preschoolers. How are the smoking habits of parents of preschoolers related to the education of the father? Here is a two-way table from a survey of the parents of preschoolers in Greece:

	Both parents smoke	One parent smokes	Neither parent smokes
University education	42	68	90
Intermediate education	47	69	75
High school education	183	281	273
Primary education or none	69	73	62

Write a brief answer to the question posed, including a comparison of selected percentages.