Tree diagrams - equally likely outcomes 10.12

Question 1

Which one of the following has equally likely outcomes?

Accepted Answer

A spinner split evenly into 5, numbered {1,2,3,4,5}, Throwing an unbiased coin

Question 2

What is the chance that the score of the 2 spinners adds up to 7?

Accepted Answer

3/9

Question 3

What is the chance of tails and a number greater than 2?

Accepted Answer

4/12

Question 4

Main: Beef or chicken. Dessert: Cake, sponge or brownie. Choose one of each. How many outcomes?

Accepted Answer

6

Question 5

Main: Beef, lamb, pork.Dessert: Cake, sponge or brownie. Choose one of each. How many outcomes?

Accepted Answer

9

Question 6

What is the probability of Heads and a number 3?

Accepted Answer

1/8

Question 7

What is the chance of heads and a number at least 4?

Accepted Answer

3/12

Question 8

What is the chance of heads and an even number?

Accepted Answer

3/12

Question 9

What is the probability of Heads and a number 3 or 4?

Accepted Answer

2/8

Question 10

If you throw 3 coins, how many outcomes are there?

Accepted Answer

8

Question 11

A different woman has 4 children. All of them are girls. What is the chance of this?

Accepted Answer

1/16

Question 12

What is the chance of getting heads 3 times in a row?

Accepted Answer

1/8

Question 13

Look at the diagram. How many outcomes are there?

Accepted Answer

12

Question 14

A woman has 2 babies. What is the chance that both are boys?

Accepted Answer

1/4

Question 15

A coin is flipped and a spinner numbered 1-4 is spun. How many outcomes are there?

Accepted Answer

8

Question 16

Given that the coin lands on heads, what is the chance of them rolling a 3?

Accepted Answer

1/4

Questions 16