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Learning Goal
Part of: Develop understanding of statistical variability — 3 of 3 cluster items
Recognize that a measure of center summarizes all values with a single number
6.SP.A.3
Recognize that a measure of center for a numerical data set summarizes all of its values with a single number, while a measure of variation describes how its values vary with a single number.
-- Standard 6.SP.A.3
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Recognize that a measure of center for a numerical data set summarizes all of its values with a single number, while a measure of variation describes how its values vary with a single number.
-- Standard 6.SP.A.3
What you'll learn
- Explain that a measure of center summarizes a distribution with one number representing a typical value.
- Explain that a measure of variation summarizes with one number how spread out the values are.
- Compute the **mean** of a small data set and interpret it as the leveling value.
- Compute the **median** of a data set (odd or even count) and interpret it as the positional middle.
- Compute the **range** of a data set and interpret it as a measure of variation.
- Recognize that a single number cannot capture every feature of a distribution -- and that mean and median can disagree, with the gap reflecting the distribution's shape.
Prerequisites
Slides
Interactive presentations perfect for visual learners • Interactive presentation
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Task-sets
Learning resource • 1 task-sets