Question

At a carnival, you and a friend decide to play a game that involves a vertical standing pegboard. The object of the game is to drop a round puck from the top, holding it against the board; the puck bounces off the pegs until it gets to the bottom of the board, landing in 1 of 10 possibilities. Each possibility at the bottom is a different prize. You get to drop the puck four times. You get numbers 1, 3, 7, and 8, and your friend gets numbers 2, 1, 8, and 7. The subset {1,2,3,7,8}
would be considered what kind of event?(1 point)
Responses

complement
complement

union
union

intersection
intersection

empty set

Answer 1

Union — it's A ∪ B, the set of outcomes that occurred for you or your friend (A = {1,3,7,8}, B = {2,1,8,7}, A ∪ B = {1,2,3,7,8}).