Scatterplot Associations

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 linear association in a scatterplot indicate?

Back

A positive linear association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative linear association in a scatterplot indicate?

Back

A negative linear association indicates that as one variable increases, the other variable tends to decrease.

Front

What does 'no association' mean in the context of a scatterplot?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

How can you identify a non-linear association in a scatterplot?

Back

A non-linear association can be identified when the data points do not form a straight line, indicating a more complex relationship.

Front

What is the purpose of using scatterplots in data analysis?

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Scatterplots are used to visually assess the relationship between two variables, helping to identify trends, correlations, or patterns.

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

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A cluster of points in a scatterplot suggests that there is a strong relationship or correlation between the two variables in that region.

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What is the significance of the slope in a linear association?

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The slope indicates the rate of change between the two variables; a steeper slope means a stronger relationship.

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What is an example of a positive linear association?

Back

An example of a positive linear association is the relationship between hours studied and test scores, where more study time generally leads to higher scores.

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What is an example of a negative linear association?

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An example of a negative linear association is the relationship between the amount of gas in a tank and the distance a car can travel, where less gas means less distance.