Probability
Chance and Probability Scale
Probability and Equally Likely Outcomes
Two Events
Estimating Probability from Experiments
100

List the outcomes from flipping a coin

Heads or Tails

100

On a probability scale of Impossible, Unlikely, Even Chance, Likely, Certain. What does the following statement fall under:

You will get an even number when throwing a dice

Even Chance

100

A fair dice is rolled. Calculate the probability of rolling a 5

1/5

100

The possible outcomes for flipping a coin twice are:

HH, HT, TH, TT.

What is the possibility of getting 2 tails

1/4

100

50 cars pass the school gate. 15 of these cars are red. Estimate the probability the next car to pass the gates will be red. 

15/50 or 3/10

200

A spinner has 3 colours. A dice has 6 numbers. How many different outcomes can you have?

18

200

On a probability scale of Impossible, Unlikely, Even Chance, Likely, Certain. What does the following statement fall under:

I draw a red card from a standard pack of cards

Even Chance

200

A letter is chosen from the word PROBABILITY. Calculate the probability the letter chosen will be an A

1/11

200

2 dice are rolled. When the outcome of both dice are tallied together, calculate the probability that the score is 12

1/12

200

A team has 24 home wins, 10 away wins and 6 draws. Estimate the probability of a home win. 

24/40 or 3/5

300

A code must consist of 1 letter A,B,C or D followed by a digit from 1 to 9. How many different codes are possible?

36

300

On a probability scale of Impossible, Unlikely, Even Chance, Likely, Certain. What does the following statement fall under:

The Irish Rugby team will win the 6 Nations grand slam 2024

Likely

300

A dart board consists of 20 numbers from 1 to 20. Determine the possibility a dart thrown will hit a multiple of 4 

5/20 or 1/4

300
3 fair coins are tossed. What is the probability of getting 3 heads. 

1/8

300

Jane drops a pin 20 times to see if it lands up. It points up 5 times. Estimate the probability of the pin landing up

1/4

400

A lunch menu consists of 3 starters, 4 main course and 2 desserts. How many 3 course meals can a person have?

24

400

On a probability scale of Impossible, Unlikely, Even Chance, Likely, Certain. What does the following statement fall under:

You will get homework tonight

Impossible

400

A bag contains 5 red discs numbered 1 to 5 along with 7 blue discs numbered 1 to 7. If a disc is chosen at random, what is the probability of choosing a disc numbered 3

2/12 or 1/6

400

Bag A contains 2 red beads and 1 white bead. Bag B contains 2 white beads and 1 red bead. A bead is drawn at random from each bag. Find the probability that both beads are red. 

2/9

400

Sean collected the results of 40 home games. They won 18 games, lost 10 and drew 12. Estimate the probability they win their next home game.

9/20

500

A menu has a choice of 5 starters and 9 main courses. How many dessert options must appear on the menu to have a total of 180 different choices?

4

500

On a probability scale of Impossible, Unlikely, Even Chance, Likely, Certain. What does the following statement fall under:

The sun will set tonight

Certain

500

100 tickets are sold in a raffle. Luke buys 10, Heather buys 5 while Alan buys 1. A ticket is picked out at random, what is the probability of Heather winning the raffle.

1/20

500

A red car, a blue car and a green car are parked in a narrow driveway one behind the other. If the cars are parked in a random order, what is the probability of the blue car being first in the driveway. 

1/3

500

Eric is a goalkeeper and makes 29 saves while he doesn't save 16 shots. Estimate the probability he saves his next shot.

0.6