Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two data sets.

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 does 'no correlation' mean in the context of a scatter plot?

Back

No correlation means that there is no apparent relationship between the two variables being plotted.

Front

How can you approximate values from a scatter plot?

Back

You can approximate values by finding the corresponding point on the plot that represents the relationship between the two variables.

Front

What is the significance of the axes in a scatter plot?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

Front

What type of data is best represented by a scatter plot?

Back

Scatter plots are best for displaying the relationship between two quantitative variables.

Front

How can outliers affect a scatter plot?

Back

Outliers can skew the interpretation of the relationship between the two variables, making it appear stronger or weaker than it actually is.

Front

What is the purpose of using a trend line in a scatter plot?

Back

A trend line helps to summarize the relationship between the variables and can indicate the direction and strength of the association.

Front

What does it mean if a scatter plot shows a linear relationship?

Back

A linear relationship means that the data points can be approximated by a straight line, indicating a consistent rate of change between the variables.