The recipe to make baked pears for every 4 pears, you need 2 cups of yogurt and 6 tablespoons of granola. What is the ratio of cups of yogurt to tablespoons of granola? * 4:2
1:2
6:2
1:3

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample