Sample

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/sample

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 signal processing context?A discrete value taken from a continuous analog signal at regular intervals
2. What is the key challenge?Ensuring the sample is representative of the larger entity to avoid bias
3. Why do scientists use samples instead of studying everything?Studying a sample saves time and resources. It lets researchers learn about a whole population by looking at a few representative members.
4. How do people make sure a sample is fair?They use methods like random sampling, stratified sampling, and cluster sampling to pick people or items that match the bigger group. This reduces bias.

Population (Statistics): The complete set of individuals or items under consideration for a study.
Sampling Bias: Systematic error introduced by the non-random selection of a sample, leading to unrepresentative results.
Sampling Rate: The number of samples taken per unit of time from a continuous signal to convert it into a discrete signal.