Lesson: Sampling Methods Mathematics

In this lesson, we will learn how to sample using different sampling methods such as simple random, systematic, and stratified sampling.

Lesson Plan

Students will be able to

apply the simple random sampling method on a frame by using random numbers,
apply the systematic sampling method on a frame to obtain a sample with a given size,
calculate the size of each stratum when applying the stratified sampling method,
identify the advantages and disadvantages of the simple random, systematic, and stratified sampling methods,
identify the sampling method used in a study,
choose a suitable sampling method for a given study.

Lesson Explainer

Lesson Playlist

03:46
03:05

Lesson Worksheet

Q1:

For a school project, three students need to produce a sample of students at their school. Which of the following methods leads to a random sample?

Q2:

Three different toys are stored in a warehouse. There are 15,000 toys in total and the number of each is shown in the table.

A stratified sample of all the toys is taken and 420 cars are selected. Calculate the total number of toys in the sample.

Q3:

A survey is done to find out the favorite movies of 500 school students. The students are categorized into males and females, and a sample of 50 students is chosen.

Which type of random sample is used for selecting a sample?

If the number of female students is 300, what is the sample size of each stratum?