# Calculate experimental probabilities and make predictions (relative frequency)

In this lesson, we will learn how to record data in a relative frequency table and use the probabilities to make predictions, including scenarios such as spinners or rolling dice.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.A dice is rolled and a fair coin is tossed. Use the table to find the probability of getting an odd number and a tail.

1/3

Q2.Students in year 7 were asked how they travelled to school. Work out the probability a student who travels by bus is selected.

2/3

Q3.Students in year 7 were asked how they travelled to school. Work out the probability of selecting a girl who doesn’t walk is selected.

3/3

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.A dice is rolled and a fair coin is tossed. Use the table to find the probability of getting an odd number and a tail.

1/3

Q2.Students in year 7 were asked how they travelled to school. Work out the probability a student who travels by bus is selected.

2/3

Q3.Students in year 7 were asked how they travelled to school. Work out the probability of selecting a girl who doesn’t walk is selected.

3/3

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Calculate experimental probabilities and make predictions

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Marion rolls a dice thirty times and records the information in a relative frequency table. How could she make her experiment more reliable?

1/3

Q2.

2/3

Q3.A spinner labelled A, B, C and D is spun 20 times. The relative frequencies are in the table below. Which statement is not true?

3/3

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Calculate experimental probabilities and make predictions

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Marion rolls a dice thirty times and records the information in a relative frequency table. How could she make her experiment more reliable?

1/3

Q2.

2/3

Q3.A spinner labelled A, B, C and D is spun 20 times. The relative frequencies are in the table below. Which statement is not true?

3/3

# Lesson summary: Calculate experimental probabilities and make predictions (relative frequency)

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Dance