Scatterplots and correlation coefficient
Flashcard
•
Mathematics
•
6th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a scatterplot?
Back
A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.
2.
FLASHCARD QUESTION
Front
What does a positive correlation indicate?
Back
A positive correlation indicates that as one variable increases, the other variable also tends to increase.
3.
FLASHCARD QUESTION
Front
What does a negative correlation indicate?
Back
A negative correlation indicates that as one variable increases, the other variable tends to decrease.
4.
FLASHCARD QUESTION
Front
What does no correlation mean?
Back
No correlation means there is no apparent relationship between the two variables; changes in one do not affect the other.
5.
FLASHCARD QUESTION
Front
What is the correlation coefficient?
Back
The correlation coefficient is a numerical measure of the strength and direction of a relationship between two variables, ranging from -1 to 1.
6.
FLASHCARD QUESTION
Front
What does an r value close to 1 indicate?
Back
An r value close to 1 indicates a strong positive correlation between the two variables.
7.
FLASHCARD QUESTION
Front
What does an r value close to -1 indicate?
Back
An r value close to -1 indicates a strong negative correlation between the two variables.
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