Scatter Plots and Association

Front

What is a scatter plot?

Back

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

Front

What does a positive association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

What is the correlation coefficient (r)?

Back

The correlation coefficient (r) is a statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

Front

What does an r value of 0.92 indicate?

Back

An r value of 0.92 indicates a strong positive correlation between the two variables.

Front

What is a linear relationship in a scatter plot?

Back

A linear relationship is when the points in a scatter plot can be approximated by a straight line.

Front

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

Back

A scatter plot with a negative relationship will show points that slope downwards from left to right.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two quantitative variables.

Front

What does it mean if a scatter plot shows no clear pattern?

Back

If a scatter plot shows no clear pattern, it suggests that there is no significant relationship between the two variables.

Front

What are outliers in a scatter plot?

Back

Outliers are data points that fall far away from the other points in a scatter plot, potentially indicating anomalies or errors.