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 slope indicate in a scatter plot?

Back

A positive slope indicates that as one variable increases, the other variable also increases.

Front

What does a negative slope indicate in a scatter plot?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

What is correlation in a scatter plot?

Back

Correlation refers to the strength and direction of a linear relationship between two variables.

Front

What is a strong positive correlation?

Back

A strong positive correlation means that the data points are closely clustered around a line that slopes upwards.

Front

What is a weak negative correlation?

Back

A weak negative correlation means that the data points are loosely scattered around a line that slopes downwards.

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, minimizing the distance of the points from the line.

Front

How do you determine if a line is an accurate line of best fit?

Back

A line is an accurate line of best fit if it closely follows the trend of the data points and minimizes the overall distance from the points.

Front

What does it mean if a scatter plot has outliers?

Back

Outliers are data points that fall far away from the other points in the scatter plot, which can affect the correlation and line of best fit.