WALA: Scatterplots and Correlation

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays two variables as points on a Cartesian plane, showing the relationship between them.

Front

What does correlation mean in statistics?

Back

Correlation refers to a statistical measure that describes the extent to which two variables change together.

Front

What is a positive correlation?

Back

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

Front

What is a negative correlation?

Back

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

Front

What does 'no correlation' mean?

Back

No correlation means there is no discernible relationship between the changes in two variables.

Front

What is a strong correlation?

Back

A strong correlation indicates a close relationship between two variables, where changes in one variable significantly affect the other.

Front

What is a weak correlation?

Back

A weak correlation indicates a loose relationship between two variables, where changes in one variable have little effect on the other.

Front

How can you identify correlation in a scatterplot?

Back

You can identify correlation in a scatterplot by observing the direction and pattern of the points; a clear upward or downward trend indicates correlation.

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually represent the relationship between two quantitative variables and to identify trends or patterns.

Front

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

Back

A cluster of points in a scatterplot indicates that there is a strong relationship between the two variables in that range.