Statistics: Understanding Correlation Coefficient (r) and Its Properties

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15 Terms

1
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r is always between ___ and ____

-1, 1; inclusive

2
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if r=1 __________________

there is a perfect positive linear relation

3
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if r= -1 __________________

there is a perfect negative linear relation

4
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the closer r is to 1

the stronger the evidence of a positive association

5
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the closer r is to -1

the stronger the evidence of a negative association

6
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if r is close to 0

there is no linear relation

7
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true of false; r has no units

true!!

8
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Is r resistant to outliers?

NO R IS NOT RESISTANT TO OUTLIERS

9
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<p>which linear relation is this?</p>

which linear relation is this?

no linear relation

10
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<p>which linear relation is this?</p>

which linear relation is this?

strong negative linear relation

11
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<p><br>which linear relation is this?</p>


which linear relation is this?

moderate negative linear relation

12
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<p>which linear relation is this?</p>

which linear relation is this?

moderate positive linear relation

13
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<p>which linear relation is this?</p>

which linear relation is this?

strong positive linear relation

14
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<p>which linear relation is this?</p>

which linear relation is this?

perfect positive linear relation

15
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<p>which linear relation is this?</p>

which linear relation is this?

perfect negative linear relation