Michael went shopping at the mall for a pair of Nike sneakers. The Nike store is giving him a 10% student discount. If the original cost of the sneakers is $220, how much will he pay after the discount? *

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