Identify an outlier and describe the effect of removing it
Free printable Grade 8 math worksheet for "Identify an outlier and describe the effect of removing it" — practice one-variable statistics. No-prep, print or assign online.
This worksheet challenges students to detect outliers within one-variable data sets and articulate the consequences of excluding these values. Designed for Grade 8 math classes, it supports instruction on one-variable statistics by promoting critical thinking about data distribution and summary statistics. Teachers can use this resource to reinforce concepts of data analysis and improve students' understanding of outlier effects on mean, median, and range.
Learning objectives
- Identify outliers in a given data set using statistical methods
- Explain how removing an outlier affects measures of central tendency and variability
- Analyze data sets to determine the impact of outliers on data interpretation
How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 25 downloads a month).
- Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
- Hand it out as classwork, homework, or a quick warm-up.
Frequently asked questions
Is the “Identify an outlier and describe the effect of removing it” worksheet free?
Yes. “Identify an outlier and describe the effect of removing it” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 25 downloads a month.
What grade or age is this Math worksheet for?
It's designed for Middle School (ages 11–14), covering One-variable statistics.
Do I need to prep anything?
No. It's a no-prep, print-and-go worksheet — just download and hand it out.
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