Scatterplots Flashcard Review

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a strong association in a scatter plot indicate?

Back

A strong association indicates that the data points are closely clustered together, suggesting a strong relationship between the two variables.

Front

What is the difference between positive and negative association in scatter plots?

Back

Positive association means that as one variable increases, the other variable also increases. Negative association means that as one variable increases, the other variable decreases.

Front

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

Back

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

Front

How can you determine the strength of a trend in a scatter plot?

Back

The strength of a trend can be determined by how closely the data points fit a line; closer points indicate a stronger trend.

Front

What is a linear association?

Back

A linear association is a relationship between two variables that can be represented by a straight line on a scatter plot.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that lies far away from the other points in the scatter plot, which can affect the overall trend.

Front

What does a positive linear association look like on a scatter plot?

Back

A positive linear association appears as an upward sloping line, where data points rise from left to right.

Front

What does a negative linear association look like on a scatter plot?

Back

A negative linear association appears as a downward sloping line, where data points fall from left to right.

Front

What is a weak trend in a scatter plot?

Back

A weak trend is indicated by data points that are spread out and do not closely follow a straight line.