## Range, variance, standard deviation

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

Describe what happens to the measures of central tendency and dispersion when new data points are added to a data set.
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## Measures of Spread and Dispersion

This Concept introduces students to the some of the measures of spread commonly used, such as range, standard deviation and variance.
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## Understanding the Mean

Learn to understand the mean and different statistical deviations.
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## IQR and Boxplots

This Concept introduces students to the some of the measures of spread commonly used, such as range, standard deviation and variance.
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## Measures of Spread or Dispersion

Describe what happens to the measures of central tendency and dispersion when new data points are added to a data set.
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## Understanding the Mean of a Data Set

by Laura Warden //basic
Understanding the mean and statistical deviations.
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Describe what happens to the measures of central tendency and dispersion when new data points are added to a data set.
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## Mean and Deviation

Learn to understand the mean and different statistical deviations.
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## Measures of Spread - Standard Deviation

Describe what happens to the measures of central tendency and dispersion when new data points are added to a data set.
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• Video

## Measures of Dispersion - Example 1

by CK-12 //basic
Finding the Range and Mean Absolute Deviation of a Data Set
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• Video

## Summarizing Distributions: Measures of Variability

Discusses variability and statistical measures that can evaluate the spread of a distribution.
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• Video

## Algebra II: Mean and Standard Deviation

by CK-12 //basic
Learn mean and standard deviation with a word problem.
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• Video

## Measures of Dispersion: A Sample Application

This video demonstrates a sample use of measures of dispersion.
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• Video

## Measures of Dispersion: An Explanation of the Concept

This video provides an explanation of the concept of measures of dispersion.
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• Real World Application

## How Smart Was Einstein?

Learn about the unique dispersion of IQ scores to find out how Einstein ranked.
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• Real World Application

## The Making of a Millionaire

You can use your knowledge of standard deviation to improve your financial investments.
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• Study Guide

## Measurement of Data

covers an intro to data and measurement, levels of measurement, and descriptive statistics
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## Plop It!

by Kyle Bardman //basic
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• Flashcards

## Understanding the Mean

by Kyle Bardman //basic