Higher

Higher

# Stratified sampling

## Lesson details

### Key learning points

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

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 3 Questions

Q1.
Which type of sampling requires a certain amount of responses from a particular section of the population?
A
B
D
Q2.
Which type of sampling divides the data into sub-groups so a representative sample of each group is taken?
A
B
C
Q3.
What type of sampling is most appropriate for testing the quality of products on a production line?
A
B
D

## Exit quiz

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### 3 Questions

Q1.
If the whole sample size is 50, what is the sample size of the bus users?
A
C
D
Q2.
If the whole sample size is 25, what is the sample size of the car users?
B
C
D
Q3.
If the whole sample size is 75, what is the sample size of the walkers?
A