# Lines of best fit

In this lesson, we will learn how to draw lines of best fit on scatter graphs, and we will invesitgate the purpose of lines of best fit.

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

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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.What type of correlation does the following graph show?

1/4

Q2.With which of these two variables would you expect to see negative correlation?

2/4

Q3.With which of these two variables would you expect to see no correlation?

3/4

Q4.What variables could go on this graph?

4/4

#### 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.What type of correlation does the following graph show?

1/4

Q2.With which of these two variables would you expect to see negative correlation?

2/4

Q3.With which of these two variables would you expect to see no correlation?

3/4

Q4.What variables could go on this graph?

4/4

# 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:

# Bivariate Data Lesson 4:

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

Q1.Which of the following is the most appropriate line of best fit for the data?

1/3

Q2.The scatter graph below shows the shoe size and height of different secondary students. If a student had a shoe size of 6, what would you expect their height to be?

2/3

Q3.Thinking about the scatter graph above, which of the statements would you agree with the LEAST? Select one.

3/3

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

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

# Bivariate Data Lesson 4:

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

Q1.Which of the following is the most appropriate line of best fit for the data?

1/3

Q2.The scatter graph below shows the shoe size and height of different secondary students. If a student had a shoe size of 6, what would you expect their height to be?

2/3

Q3.Thinking about the scatter graph above, which of the statements would you agree with the LEAST? Select one.

3/3

# Lesson summary: Lines of best fit

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga