Grade 9 Random Sampling Worksheet
A worksheet for Grade 9 students covering concepts of random sampling, including definitions, types, and applications.
Includes
Standards
Topics
Random Sampling in Statistics
Name:
Date:
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Read each question carefully and provide your answer in the space provided. Show all your work for short answer questions.
1. Which of the following best describes a simple random sample?
Every nth member of the population is selected.
The population is divided into groups, and some groups are randomly selected.
Every member of the population has an equal chance of being selected.
Participants are chosen based on convenience.
2. A high school wants to survey its students about their favorite lunch options. They decide to survey every 10th student who enters the cafeteria. What type of sampling method is this?
Simple Random Sampling
Stratified Sampling
Systematic Sampling
Convenience Sampling
3. A is a subset of individuals selected from a larger population.
4. In sampling, the population is divided into homogeneous subgroups before sampling.
5. A non-random sample is always preferred over a random sample for accurate statistical inference.
True
False
6. Random sampling helps to minimize bias in data collection.
True
False
7. A company wants to determine the average age of its employees. Describe how they could use a simple random sampling method to select 50 employees for a survey.
8. Explain the difference between stratified random sampling and cluster sampling. Provide an example for each.
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