M4U8D1 Correlation and Scatterplots

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•
Mathematics
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a dependent variable?
Back
The dependent variable is the outcome or response that is measured in an experiment. It is affected by changes in the independent variable. Example: In a study on ice cream sales, ice cream sales are the dependent variable.
2.
FLASHCARD QUESTION
Front
What is an independent variable?
Back
The independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable. Example: In a study on cucumber yield, precipitation is the independent variable.
3.
FLASHCARD QUESTION
Front
What does a positive correlation indicate?
Back
A positive correlation indicates that as one variable increases, the other variable also increases. Example: More hours studied may lead to higher test scores.
4.
FLASHCARD QUESTION
Front
What does a negative correlation indicate?
Back
A negative correlation indicates that as one variable increases, the other variable decreases. Example: As the temperature increases, the amount of hot chocolate sold may decrease.
5.
FLASHCARD QUESTION
Front
What does it mean if the correlation coefficient (r) is close to 0?
Back
If the correlation coefficient (r) is close to 0, it indicates that there is little to no linear relationship between the two variables.
6.
FLASHCARD QUESTION
Front
What does it mean if the correlation coefficient (r) is close to 1?
Back
If the correlation coefficient (r) is close to 1, it indicates a strong positive linear relationship between the two variables.
7.
FLASHCARD QUESTION
Front
What does it mean if the correlation coefficient (r) is close to -1?
Back
If the correlation coefficient (r) is close to -1, it indicates a strong negative linear relationship between the two variables.
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