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Correlation visualization

Theory

Types of correlation

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Let's say we have two variables: a and b. We want to calculate the correlation between them. There are three possible results: positive correlation, negative correlation, or none at all. What does each of these things mean?

Match the items from left and right columns
positive correlation
negative correlation
no correlation
for a decrease in a, there's a decrease in b
for a decrease in a, there's an increase in b
there's no relationship between a and b
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