Scatter Plots Review

Front

What is a scatter plot?

Back

A scatter plot is a graphical representation of two variables where each point represents an ordered pair of values.

Front

What does it mean if a scatter plot has no association?

Back

It means that the ordered pairs have no predictable pattern.

Front

What is an outlier in a scatter plot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

What type of association is indicated by a scatter plot where points trend upwards?

Back

Positive Association.

Front

What type of association is indicated by a scatter plot where points trend downwards?

Back

Negative Association.

Front

Give an example of a situation that would likely show a negative association.

Back

The relationship between how many layers of clothing a person wears and the temperature outside.

Front

What does a linear association in a scatter plot indicate?

Back

It indicates that there is a straight-line relationship between the two variables.

Front

How can you identify a linear association in a scatter plot?

Back

By observing if the points roughly form a straight line.

Front

What does it mean if a scatter plot does not have a linear association?

Back

It means that the relationship between the variables is not represented well by a straight line.

Front

What is the purpose of using scatter plots in data analysis?

Back

To visually assess the relationship between two quantitative variables.