Scatter Plots

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

Front

What is a linear relationship in a scatter plot?

Back

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

Front

What is a nonlinear association in a scatter plot?

Back

A nonlinear association occurs when the relationship between the variables cannot be represented by a straight line.

Front

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

Back

A positive association is identified when the data points slope upwards from left to right.

Front

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

Back

A negative association is identified when the data points slope downwards from left to right.

Front

What does the slope of a line in a scatter plot represent?

Back

The slope represents the rate of change between the two variables; a positive slope indicates a positive relationship, while a negative slope indicates a negative relationship.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two variables and to identify trends, patterns, or correlations.