Scatterplots

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 positive correlation in a scatter plot indicate?

Back

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

Front

What does a negative correlation in a scatter plot indicate?

Back

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

Front

What does no correlation mean in a scatter plot?

Back

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

Front

What is a 'Line of Best Fit'?

Back

A 'Line of Best Fit' is a straight line that best represents the data on a scatter plot, showing the general direction of the data points.

Front

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

Back

A positive relationship can be identified when the data points trend upwards from left to right.

Front

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

Back

A negative relationship can be identified when the data points trend downwards from left to right.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually display the relationship between two variables and to identify patterns or trends in data.

Front

What does it mean if a scatter plot has a cluster of points?

Back

A cluster of points indicates that there is a concentration of data points in that area, suggesting a possible relationship between the variables.

Front

What is an example of a positive correlation?

Back

An example of a positive correlation is the relationship between study time and test scores; generally, more study time leads to higher test scores.