Probability

​Probability

​Recap of Ratio/Proportion
Probability
1) What is it used for?
2) Match the Odds
3) Dice
4) Probability Scales
5) Two Dice
6) Systematic Listings
7) Relative Frequency

​The following slides are a recap of what we have done over the last few weeks!

Answer the best you can!

Match

Match these simplified ratio's

• 45:90

• 52:84

• 30:65

• 75:175

• 90:200

1:2

13:21

6:13

3:7

9:20

• 1:2

• 13:21

• 6:13

• 3:7

• 9:20

Fill in the Blanks

Answer this sharing ratio question

Fill in the Blanks

What is the answer to this question?

Fill in the Blanks

Answer this exam style question

​Real Life

Labeling

Match the odds to the statement

Drag labels to their correct position on the image

1 in 562

1 in 11.5 million

1 in 33 million

1 in 10 thousand

1 in 10000

1 in 4 million

​You will need your books to complete work and take notes going forward

​Random

​A measure of of how likely an event is to happen

​

​

​Probability

​if a letter is picked at random from the letters of the alphabet means that every letter has an equal chance of being picked.

​Dice Example

​First with one dice, you have 5 minutes
to roll the dice and record how many
1,2,3,4,5's and 6's and add them up

​So lets look at the probability of 1 dice (die)

​What is the probability of rolling a 6?



What is the probability of rolling a 1?



What is the probability of rolling a 7?

​Lets look at this on a probability scale

​1) Probability of rolling a 6

2) Probability of rolling a 1

3) Probability of rolling a 7

Hotspot

Answer the exam style question

Hotspot

Answer the exam style question.

Hotspot

Last one, Answer the exam style question.

​Dice Example

​Now with dice, you have 5 minutes
to roll the dice and record the score and add them up

​

​2 Dice Example

​What is the probability of throwing 2 in total?




What is the probability of throwing 5 in total?

Multiple Choice

What is the probability of throwing a double six?

• 1/36
• 1/12
• 1/18
• 1/24

​Systematic Listing

​

​Systematic Listing is where you think about each of the possible combinations in a logical order. Questions are normally about menus

​Systematic Listing: Your Turn answer this in your books

Open Ended

Answer this June 2024 Paper 2 question worth 2 marks

​Relative Frequency

​The number of times an event happens divided by the total number of outcomes that took place in an experiment or trial

​Relative Frequency

Multiple Choice

Answer the probability question? What is the probability that it will land point up?

• 20/25

• 15/20

• 1/10

• 5/20

Multiple Choice

Answer this probability question? what is the probability ta it will land point down?

• 15/50

• 15/35

• 35/50

• 40/60

Multiple Choice

Answer this probability question. What is the probability it will land head up?

• 27/50

• 27/33

• 33/60

• 27/60

Multiple Choice

Answer this probability question. What is the probability of the car being silver?

• 15/30

• 10/30

• 3/30

• 2/30

Multiple Choice

Answer this probability question. What is the probability of the car being black?

• 10/30

• 3/30

• 15/30

• 2/30

Multiple Choice

Last one of these, answer the question what is the probability of the car is not red?

• 28/30

• 10/30

• 15/30

• 27/30

​Extra:

1) Worksheets
2) Mathswatch

Videos:

​https://play.blooket.com/play?hwId=67963de1304b8eaba13199b2