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 the x-axis represent in a scatter plot?

Back

The x-axis typically represents the independent variable, which is the variable that is manipulated or changed.

Front

What does the y-axis represent in a scatter plot?

Back

The y-axis typically represents the dependent variable, which is the variable that is measured or observed.

Front

What is a positive correlation in a scatter plot?

Back

A positive correlation means that as one variable increases, the other variable also increases, resulting in an upward trend.

Front

What is a negative correlation in a scatter plot?

Back

A negative correlation means that as one variable increases, the other variable decreases, resulting in a downward trend.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no discernible relationship between the two variables, and the data points do not show any trend.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the overall trend of the data.

Front

How can you determine the strength of a correlation in a scatter plot?

Back

The strength of a correlation can be determined by how closely the data points cluster around the line of best fit; tighter clusters indicate a stronger correlation.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that is significantly different from the other data points, which can affect the overall trend.

Front

How do you interpret a scatter plot with a positive correlation?

Back

In a scatter plot with a positive correlation, you can interpret that as one variable increases, the other variable tends to increase as well.