Human Growth and Development / Unit 1 HGD 0058 short lesson, about 20 seconds
The Correlation Coefficient
Captions available
The idea
The correlation coefficient runs from minus one to plus one: its size gives the strength of a relationship, and its sign gives the direction.
In practice
Height and weight rising together, and more sleep going with less tiredness.
Where people slip
A negative correlation is still a relationship. Zero means none; point nine is far stronger than point three.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
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