and/or Probability Warm-up

You have two games. Game A is harder to win than Game B. Which game has the lowest probability of you winning?

• Game A

• Game B

You have two games that involve rolling dice and spinning a spinner. You win Game Y if you roll a 5 OR if you spin blue. To win Game Z, you must roll a 5 AND spin blue.

Which game is harder to win?

• Game Y

• Game Z

Which answer is bigger?

A game includes a spinner divided equally into 4 sections (red, blue, green, and yellow).

Which expression represents the probability of spinning a red OR a blue?

A game includes a spinner divided equally into 4 sections (red, blue, green, and yellow). You get to spin twice.

Which expression represents the probability of spinning a red AND a blue?