Stratified sampling

Understand stratified sampling and calculate sample sizes of strata

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.

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!

Question 1

Question 2

Question 3

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.

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!

Question 1

Question 2

Question 3

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.

Quiz:

Stratified sampling

Understand stratified sampling and calculate sample sizes of strata.

Question 1

Question 2

Question 3

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.

Quiz:

Stratified sampling

Understand stratified sampling and calculate sample sizes of strata.

Question 1

Question 2

Question 3

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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