Scatter Plots and Lines of Best Fit

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 line of best fit represent in a scatter plot?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, indicating the general direction of the data points.

Front

What does it mean if a scatter plot shows a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also tends to increase.

Front

What does it mean if a scatter plot shows a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable tends to decrease.

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that is significantly different from other data points in the scatter plot, often lying far away from the trend.

Front

What is a cluster in a scatter plot?

Back

A cluster is a group of data points that are closely packed together in a certain area of the scatter plot.

Front

What does it mean if there is no correlation in a scatter plot?

Back

No correlation means that there is no apparent relationship between the two variables; the data points do not follow a trend.

Front

How do you determine the line of best fit?

Back

The line of best fit is determined by finding the line that minimizes the distance between itself and all the data points in the scatter plot.

Front

What is the purpose of using a scatter plot?

Back

The purpose of using a scatter plot is to visually display the relationship between two variables and to identify trends, correlations, or patterns.

Front

What is the difference between a scatter plot and a line graph?

Back

A scatter plot displays individual data points to show relationships, while a line graph connects data points with lines to show trends over time.