Stratified sampling

In this lesson, we will learn to understand and interpret stratified sampling and calculate sample sizes of strata

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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.Which type of sampling requires a certain amount of responses from a particular section of the population?

1/3

Q2.Which type of sampling divides the data into sub-groups so a representative sample of each group is taken?

2/3

Q3.What type of sampling is most appropriate for testing the quality of products on a production line?

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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.Which type of sampling requires a certain amount of responses from a particular section of the population?

1/3

Q2.Which type of sampling divides the data into sub-groups so a representative sample of each group is taken?

2/3

Q3.What type of sampling is most appropriate for testing the quality of products on a production line?

3/3

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

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

Stratified sampling

Understand stratified sampling and calculate sample sizes of strata.

Q1.If the whole sample size is 50, what is the sample size of the bus users?

1/3

Q2.If the whole sample size is 25, what is the sample size of the car users?

2/3

Q3.If the whole sample size is 75, what is the sample size of the walkers?

3/3

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

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

Stratified sampling

Understand stratified sampling and calculate sample sizes of strata.

Q1.If the whole sample size is 50, what is the sample size of the bus users?

1/3

Q2.If the whole sample size is 25, what is the sample size of the car users?

2/3

Q3.If the whole sample size is 75, what is the sample size of the walkers?

3/3

Lesson summary: Stratified sampling

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