A video game store wants to discontinue one of the gaming consoles they sell, but want to ensure they keep the most popular. For two weeks, the sales clerk asks every third customer which console is their favorite.

Experiment
Sample Survey
Observational Study

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.

the answer for the second equation is (4,0)