Line of Best Fit

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 trend of the data points.

Front

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

Back

A good line of best fit minimizes the distance between the line and all the data points, indicating that it accurately represents the trend.

Front

What does the slope of a line of best fit represent?

Back

The slope indicates the rate of change between the two variables in the data set.

Front

What does the y-intercept of a line of best fit represent?

Back

The y-intercept is the value of y when x is zero, indicating where the line crosses the y-axis.

Front

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations, often lying far away from the line of best fit.

Front

How can you identify an outlier on a scatter plot?

Back

An outlier can be identified as a point that is distant from the cluster of other data points.

Front

What is the equation of a line of best fit?

Back

The equation of a line of best fit is typically written in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What does a positive slope indicate about the relationship between two variables?

Back

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

Front

What does a negative slope indicate about the relationship between two variables?

Back

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

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for two variables using dots to represent data points.