Scatterplots Correlation

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 grid.

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What does a positive correlation indicate in a scatterplot?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What does a negative correlation indicate in a scatterplot?

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A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What does 'no correlation' mean in a scatterplot?

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No correlation means there is no discernible relationship between the two variables; changes in one variable do not predict changes in the other.

Front

How can you identify a positive correlation in a scatterplot?

Back

A positive correlation can be identified when the data points slope upwards from left to right.

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How can you identify a negative correlation in a scatterplot?

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A negative correlation can be identified when the data points slope downwards from left to right.

Front

What is the purpose of using scatterplots?

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Scatterplots are used to visually represent the relationship between two variables and to identify patterns or trends.

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What is an example of a positive correlation?

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An example of a positive correlation is the relationship between hours studied and test scores; generally, more study hours lead to higher scores.

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What is an example of a negative correlation?

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An example of a negative correlation is the relationship between the amount of gas in a tank and the number of miles driven; as miles driven increases, gas decreases.

Front

What does it mean if a scatterplot shows no clear pattern?

Back

If a scatterplot shows no clear pattern, it suggests that there is no correlation between the two variables.