Population and Sample Worksheet

Population and Sample Worksheet

Read each question carefully and answer to the best of your ability. Identify populations and samples, and explain your reasoning.

1. A researcher wants to know the average height of all students in a large school district. They measure the height of 100 randomly selected students. What is the population in this study?

2. In the same study, what is the sample?

3. A   is the entire group of individuals or objects about which information is desired.

4. A   is a part of the population that is actually examined in order to gather information.

5. A factory produces light bulbs. To check the quality, a supervisor inspects 50 light bulbs from a batch of 5000. Identify the population and the sample in this scenario.

Population:  

Sample:  

6. It is always practical to study an entire population.

7. A good sample should accurately represent the characteristics of the population.

8. A grocery store owner wants to know the preferred brand of milk among their customers. They ask every 10th customer who enters the store on a specific day. Describe the population and the sample in this study. Is this a good way to get a representative sample? Explain why or why not.