Practice Page Uncertainty

Answer the following questions dealing with fair or unfair games.

 Phil plays a game with his brother and sisters to see who will walk the dog. They use a spinner like the one on the right. Is the spinner fair or unfair? fair Answer The spinner is fair; everyone gets an even chance when spinning. Explanation

 In Betty's game, players take turns tossing  2 dimes. If 2 heads or 2 tails come up, Player 1 gets 1 point. If a head and a  tail come up, Player 2 gets a point. Is this game fair or unfair? fair Answer The game is fair because the coins can land; heads/heads, heads/tails, tails/heads, or tails/tails. Explanation

 John makes a spinner game in which three motorcycles move around a track. Each time a color is spun, the motorcycle of that color moves forward a space. Is the spinner fair or unfair? unfair Answer The spinner is unfair; there is a greater chance of spinning red. Explanation

 In Patty's game, two players take turns pulling a marble out of the box. Player 1 gets 1 point for each blue marble they pull and Player 2 gets 1 point for each red marble they pull. Is the game fair or unfair? unfair Answer The game is unfair; there are more blue marbles than red marbles. Explanation

 The letters from the word "vacation" are written on separate cards and placed in a box. Tom chooses a card without looking. He scores 1 point for a vowel. Sue scores 1 point if it is a consonant. Is the game fair or unfair? fair Answer
 The game is fair; there are the same amount of vowel and consonant cards. Explanation