Mean

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/mean

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 population vs. sample?μ (mu) denotes the population mean; x̄ (x-bar) denotes the sample mean
2. What is the sensitivity?Highly sensitive to extreme values (outliers) in the dataset
3. What is the mean and how do we find it?The mean is the middle number that represents the center of a group. To find it, add all the numbers together and divide by how many numbers there are.
4. Why is the mean useful for everyday things?The mean gives a single number that shows the average of many values, like the average height of friends or the average temperature. It helps people understand big sets of data easily.

Measure of Central Tendency: A statistical measure that identifies the center or typical value of a dataset.
Outlier: A data point that differs significantly from other observations in a dataset.
Inferential Statistics: Using sample data to make generalizations or predictions about a larger population.