Describing Scatter Plots

Front

What is a positive correlation?

Back

A positive correlation is a relationship between two variables where, as one variable increases, the other variable also increases.

Front

What does a negative correlation indicate?

Back

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

Front

What does no correlation mean?

Back

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

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data.

Front

How can you identify a positive correlation in a scatter plot?

Back

In a scatter plot, a positive correlation is identified when the points trend upwards from left to right.

Front

How can you identify a negative correlation in a scatter plot?

Back

In a scatter plot, a negative correlation is identified when the points trend downwards from left to right.

Front

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

Back

If a scatter plot has no outliers, it means all data points fit the general trend without any extreme values.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that differs significantly from other observations in a scatter plot.

Front

What does a linear relationship in a scatter plot indicate?

Back

A linear relationship indicates that the data points can be approximated by a straight line.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a numerical measure of the strength and direction of a relationship between two variables.