Correlation

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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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 indicate the strength and direction of a relationship between the variables.
2.
FLASHCARD QUESTION
Front
What are the types of correlation?
Back
There are three types of correlation: Positive Correlation, Negative Correlation, and No Correlation.
3.
FLASHCARD QUESTION
Front
What does positive correlation mean?
Back
Positive correlation means that as one variable increases, the other variable also increases. For example, height and weight often show positive correlation.
4.
FLASHCARD QUESTION
Front
What does negative correlation mean?
Back
Negative correlation means that as one variable increases, the other variable decreases. For example, the amount of time spent studying and the number of errors made on a test may show negative correlation.
5.
FLASHCARD QUESTION
Front
What does no correlation mean?
Back
No correlation means that there is no predictable relationship between the two variables. Changes in one variable do not affect the other.
6.
FLASHCARD QUESTION
Front
How is correlation measured?
Back
Correlation is measured using a correlation coefficient, which ranges from -1 to +1. A coefficient close to +1 indicates a strong positive correlation, while a coefficient close to -1 indicates a strong negative correlation.
7.
FLASHCARD QUESTION
Front
What is an example of positive correlation?
Back
An example of positive correlation is the relationship between temperature and ice cream sales; as temperature increases, ice cream sales tend to increase.
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