Introduction to Scatterplots and Correlation

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a positive correlation indicate in a scatterplot?

Back

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

Front

What does a negative correlation indicate in a scatterplot?

Back

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

Front

What does no correlation mean in a scatterplot?

Back

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

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatterplot, showing the general direction of the relationship between the variables.

Front

How can you identify a positive correlation in a scatterplot?

Back

A positive correlation can be identified when the points on the scatterplot slope upwards from left to right.

Front

How can you identify a negative correlation in a scatterplot?

Back

A negative correlation can be identified when the points on the scatterplot slope downwards from left to right.

Front

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

Back

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

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that lies far away from the other points in the scatterplot, which may indicate an unusual relationship.

Front

What is the purpose of analyzing scatterplots?

Back

Analyzing scatterplots helps to understand the relationship between two variables, identify trends, and make predictions.