Probability Build Tree Diagrams

What is the probability that the dessert is brownies or does have peanut butter in it?

• 0.95

• 0.99

• 0.42

• 0.64

What is the probability that the dessert is not brownies or does not have peanut butter in it?

• 0.99

• 0.42

• 0.95

• 0.64

Knowing that the dessert has peanut butter in it, what is the probability that it's brownies?

• 58

• 0.58

• 0.02

• 0.98

What is the probability that the dessert is brownies, knowing that the dessert has peanut butter?

• 0.98

• 0.02

• 0.58

• 1.58

There are 8 counters in a bag, 1 is red. I take one counter, replace it, then take another. What is the probability of taking a red counter on the second go?

• ¹/₈

• ⁷/₈

• ¹/₇

• ⁶/₇

There are 8 counters in a bag, 1 is red. I take one counter, replace it, then take another. What is the probability of taking counters of the same colour?

• ¹⁴/₆₄

• ¹/₆₄

• ⁵⁰/₆₄

• ⁴⁹/₆₄

There are 8 counters in a bag, 1 is red.

I take one counter, replace it, then take another.

What is the probability of taking a red counter on the first go?

• ¹/₈

• ⁷/₈

• ¹/₇

• ⁶/₇

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
What is the probability of rolling an even number and flipping a head?

• ³/₁₂

• ¹/₂

• ⁴/₁₂

• ⁰/₁₂

Use the tree diagram to find the probability of tossing a head first and then a tail when a coin is tossed twice.

• 1

• 1_/2

• 1/₄

• 1/8

A Tree Diagram is

• A written list of all possible outcomes

• A description of all possible outcomes

• A drawing with branches of all possible outcomes