IA 2 Review pt. 1
Flashcard
•
Mathematics
•
8th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a positive correlation?
Back
A positive correlation is a relationship between two variables where, as one variable increases, the other variable also increases.
2.
FLASHCARD QUESTION
Front
What is a negative correlation?
Back
A negative correlation is a relationship between two variables where, as one variable increases, the other variable decreases.
3.
FLASHCARD QUESTION
Front
What does no correlation mean?
Back
No correlation means there is no relationship between two variables; changes in one variable do not affect the other.
4.
FLASHCARD QUESTION
Front
What is a correlation coefficient?
Back
A correlation coefficient is a numerical measure of the strength and direction of a relationship between two variables, ranging from -1 to 1.
5.
FLASHCARD QUESTION
Front
What does a correlation coefficient of r = -0.9 indicate?
Back
A correlation coefficient of r = -0.9 indicates a strong negative correlation between the two variables.
6.
FLASHCARD QUESTION
Front
What is the importance of data trends in decision-making?
Back
Data trends help decision-makers make more informed and accurate decisions by providing insights into patterns and relationships.
7.
FLASHCARD QUESTION
Front
How can you identify a negative correlation in a scatterplot?
Back
In a scatterplot, a negative correlation is identified when the points slope downwards from left to right.
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