Grade 8 Math: Sampling Methods
This worksheet covers various sampling methods for Grade 8 students, including definitions, identification, and application in real-world scenarios.
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Topics
Sampling Methods
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is an example of a random sampling method?
Asking only your friends
Picking names out of a hat
Surveying the first 10 people you see
Choosing people who volunteer
2. What is the main purpose of using a random sample?
To save time
To make the survey easier
To get biased results
To ensure the sample represents the population
3. A is a part of the population that is actually examined in order to gather information.
4. When every member of the population has an equal chance of being selected, it is called a sample.
5. A convenience sample is generally considered a good representation of a larger population.
True
False
6. A stratified random sample divides the population into groups and then randomly selects individuals from each group.
True
False
7. Describe a scenario where a systematic random sample would be an appropriate sampling method.
8. Explain the difference between a population and a sample.
9. A high school principal wants to survey students about their favorite cafeteria food. They decide to survey every 10th student who enters the cafeteria during lunch.
a) What type of sampling method is the principal using?
b) Is this a good sampling method for this scenario? Explain why or why not.