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Identify an outlier and describe the effect of removing it

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Identify an outlier and describe the effect of removing it — free printable Algebra 1 math worksheet

This worksheet challenges students to recognize outliers within single-variable data sets and understand their influence on statistical measures. Teachers can use this resource to reinforce concepts of data analysis and variability in Algebra 1. It supports critical thinking by having students evaluate how removing outliers changes the overall data interpretation.

Learning objectives

  • Identify outliers in a given data set using appropriate statistical methods
  • Analyze the impact of removing an outlier on measures of central tendency and variability
  • Describe how outliers affect the interpretation of single-variable data

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for High School; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

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