Justin, Cam, and Ben are playing a board game where exactly one player will win. Ben estimates that Justin has a 20% chance of winning each game and that Cam has a 50% chance of winning each game.What is the probability that Ben will win the board game?Choose 1 answer:(A) 20%(B) 30%(C) 50%(D) 70%
Q. Justin, Cam, and Ben are playing a board game where exactly one player will win. Ben estimates that Justin has a 20% chance of winning each game and that Cam has a 50% chance of winning each game.What is the probability that Ben will win the board game?Choose 1 answer:(A) 20%(B) 30%(C) 50%(D) 70%
Understand the problem: Understand the problem.We are given the probabilities of Justin and Cam winning the game. We need to find the probability of Ben winning the game. Since one player will win, the sum of the probabilities of all three players winning should be 100%.
Calculate Ben's probability: Calculate the probability of Ben winning.We know that Justin has a 20% chance of winning and Cam has a 50% chance of winning. The total probability for one of them to win is:Probability of Justin or Cam winning = Probability of Justin winning + Probability of Cam winning= 20%+50%= 70%
Subtract from 100%: Subtract the total probability of Justin and Cam winning from 100% to find Ben's probability of winning.Probability of Ben winning = 100%−Probability of Justin or Cam winning= 100%−70%= 30%