Understanding Probability: Creating and Analyzing a Probability Tree Diagram

What is the total number of counters in Bag X?

• 9

• 11

• 20

• 16

How many blue counters are there in Bag Y?

• 11

• 16

• 7

• 9

What is the probability of drawing a red counter from Bag X?

• 7/16

• 9/16

• 9/20

• 11/20

When calculating the probability of both counters being red, what operation is used?

• Division

• Multiplication

• Subtraction

• Addition

What is the probability of both counters being red?

• 63/320

• 99/320

• 162/320

• 7/16

What is the probability of both counters being blue?

• 63/320

• 99/320

• 162/320

• 11/20

What is the final probability of both counters being either red or blue?

• 63/320

• 99/320

• 7/16

• 162/320