Scatter Lot, Line of Best Fit, Outliers

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 line of best fit represent in a scatter plot?

Back

The line of best fit represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Front

What is a negative association in a scatter plot?

Back

A negative association occurs when one variable increases while the other variable decreases, resulting in a downward trend in the scatter plot.

Front

What is an outlier in a scatter plot?

Back

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

Front

TRUE OR FALSE: A line of best fit must go through all data points.

Back

False. A line of best fit does not have to go through all data points; it aims to minimize the distance from all points.

Front

How can you determine the number of chapters in a book with 180 pages using a scatter plot?

Back

You can use the trend line in the scatter plot to estimate the number of chapters corresponding to 180 pages.

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 increases, resulting in an upward trend.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to summarize the relationship between two variables and make predictions based on the data.

Front

How do you identify outliers in a scatter plot?

Back

Outliers can be identified as points that are far removed from the general cluster of data points in the scatter plot.

Front

What is the significance of the slope of the line of best fit?

Back

The slope of the line of best fit indicates the rate of change between the two variables; a steeper slope means a stronger relationship.