Sampling (statistics)

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/sampling-statistics

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the core principle?Inferring population characteristics from a subset, minimizing bias and maximizing efficiency
2. What is the key methodologies?Includes Simple Random Sampling, Stratified Sampling, Cluster Sampling, and Systematic Sampling
3. What is sampling in statistics?Sampling is picking a small group from a big group to learn about the whole group, like choosing a few cookies from a jar to see if they taste good.
4. Why do scientists use sampling?Scientists use sampling because looking at every single item would take too much time and money, so they can make good guesses about the whole group from a smaller sample.

Population: The entire group of individuals or items that a study aims to understand.
Sample: A subset of the population selected to represent the whole group in a study.
Sampling Frame: A list or source from which a sample is drawn, ideally representing the entire population.
Sampling Error: The difference between a sample statistic and the true population parameter.