Chapter 7 Review

Flashcard
•
Mathematics
•
11th - 12th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is correlation?
Back
Correlation is a statistical measure that describes the extent to which two variables change together. It can be positive, negative, or zero.
Tags
CCSS.HSS.ID.C.9
2.
FLASHCARD QUESTION
Front
What does a correlation coefficient (r) of -0.95 indicate?
Back
A correlation coefficient of -0.95 indicates a strong negative correlation between the two variables.
Tags
CCSS.HSS.ID.B.5
3.
FLASHCARD QUESTION
Front
What does a correlation coefficient (r) of 0.9 indicate?
Back
A correlation coefficient of 0.9 indicates a strong positive correlation between the two variables.
Tags
CCSS.HSS.ID.B.5
4.
FLASHCARD QUESTION
Front
What is a lurking variable?
Back
A lurking variable is a variable that is not included in the analysis but affects the relationship between the variables being studied.
Tags
CCSS.HSS.ID.C.9
5.
FLASHCARD QUESTION
Front
If r=0, what does it imply about the correlation?
Back
If r=0, it implies that there is no correlation between the two variables.
Tags
CCSS.HSS.ID.B.5
6.
FLASHCARD QUESTION
Front
What is the range of correlation coefficients?
Back
The range of correlation coefficients is from -1 to +1.
Tags
CCSS.HSS.ID.B.5
7.
FLASHCARD QUESTION
Front
What does a positive correlation mean?
Back
A positive correlation means that as one variable increases, the other variable also tends to increase.
Tags
CCSS.HSS.ID.B.5
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