(Gradpoint)
Find the area of the triangle with height h = 100 km and base b = 200 km. 10,000 km2 2,000 km2 20,000 km2 1,000 km2

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