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 axis.

Front

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 the context of scatterplots?

Back

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

Front

How can you identify a negative correlation in a scatterplot?

Back

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

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How can you identify a positive correlation in a scatterplot?

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A positive correlation can be identified when the data points slope upwards 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 trends or patterns.

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What is an example of a negative correlation in real life?

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An example of a negative correlation is the relationship between the number of hours studied and the number of errors made on a test; as study hours increase, errors typically decrease.

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What is an example of a positive correlation in real life?

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An example of a positive correlation is the relationship between the amount of exercise and fitness level; as exercise increases, fitness level also tends to increase.

Front

What does it mean if a scatterplot shows a cluster of points?

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A cluster of points in a scatterplot indicates that there is a strong relationship between the two variables in that area.