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6–12

Name

Date

Probability at Play

In this game, you toss rings onto colored pegs. Each time you toss a ring, it will land

on one of the pegs. The probability that a ring will land on a peg is 1. The chart below

shows the number of pegs of each color.

Peg Color White

Pink

Red Orange Yellow Green

Blue

Purple Black

Number

of Pegs

30

50

2

14

10

20

4

40

30

Probability

15% 25% 1%

7%

5% 10% 2% 20% 15%

for One Ring

Calculate the probability of a ring landing on each color. Express each probability as a

1.

percent in the table.

Suppose you were in charge of this game at a carnival. You have 9 prizes valued from $1

2.

to $9. Each peg color has a different prize. How would you decide which color gets the

$1 prize? the $9 prize? Explain your answer.

Sample answer: The red peg should be $9 since

it’s the least likely and the pink should get $1 since

it’s the most likely. I would determine the other

prizes from least to greatest.

If you could pick a color and then win a prize if another player’s ring landed on that

3.

color, which color would you pick? Why?

Sample answer: I would pick pink because it has the

best chance of winning a prize.

Extend It How could you change the ring toss game to make it more likely that someone

4.

will get the $9 prize? less likely?

Check students’ answers.

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Parent category: Education