Unit 6: Probability - Lesson 5

Unit 6: Probability

Lesson 5 - Experimental

Vocabulary

• Fair: if each player has an equal chance of winning

• Unfair: if there is no such chance

LAB

Player 1 and Player 2 are tossing 3 two-color counters. The results are shown in the table ->

Player 1 wins if there is 2 or more Red counters [R].

Player 2 wins if there is 2 or more Yellow counters [Y].

Poll

Based off the table, do you think the game is Fair or Unfair?

• Fair

• Unfair

Multiple Choice

Determine the Experimental Probability of Player 1 winning.

P(P1 wins) = ?

• 1 / 2

• 2 / 5

• 3 / 5

• 3 / 4

Sample Space for tossing 3 two-color counters.

P1 wins if: 2 or more R

P2 wins if: 2 or more Y

Multiple Choice

How many possible outcomes are there in this event?

• 8

• 6

• 10

• 9

Multiple Select

How many ways can P1 win? Select all the winning plays for Player 1.

• RRR

• RRY

• RYR

• YRR

• YYR

Multiple Select

How many ways can P2 win? Select all the winning plays for Player 2.

• RYY

• YRY

• RYR

• YYY

• YYR

Multiple Choice

What is the Theoretical probability of P1 winning?

• 1/4 = 25%

• 1/3 = 33%

• 1/2 = 50%

• 3/4 = 75%

Open Ended

The Experimental Probability of P1 winning was 3/5 = 60%.

The Theoretical Probability of P1 winning was 1/2 = 50%.

Compare the two probabilities and describe any differences.

Poll

Rate your understanding

• I am lost

• I understand

• I am a little