## Why Regression Solution - Intro to Statistics

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Y will always be less extreme.
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The key to understanding this simply is this equation.
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This is what tells us that the standard scores have a regression coefficient ≤ 1.
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We said it's 1, and so because it's not 1 it must be less than that.
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That means the standard score shrinks.
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If the standard score shrinks that means if it's negative it moves this way.
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If it's positive it moves this way.
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That means there is more area under here,
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so this has to be a little more area than this.
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Therefore, y will always be less extreme.
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This is the concept of regression.
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That is regression to the mean.
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If someone is exceptional in one thing,
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we will always predict that person to be a bit less exceptional
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in that other thing if there is any error.
Cím:
Why Regression Solution - Intro to Statistics
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Video Language:
English
Team:
Udacity
Projekt:
ST101 - Intro to Statistics
Duration:
01:07
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