Line of Best Fit Review

Front

What is a line of best fit?

Back

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

Front

What does an outlier represent in a scatter plot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

How can you use a trend line to make predictions?

Back

You can extend the trend line to estimate values for data points not explicitly shown in the scatter plot.

Front

What does a positive trend in a scatter plot indicate?

Back

As one variable increases, the other variable also increases.

Front

What does a negative trend in a scatter plot indicate?

Back

As one variable increases, the other variable decreases.

Front

What is correlation in the context of scatter plots?

Back

Correlation describes the strength and direction of a relationship between two variables.

Front

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

Back

There is no discernible relationship between the two variables; changes in one do not affect the other.

Front

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

Back

You find the point on the trend line that corresponds to 180 pages and read the number of chapters from that point.

Front

What is the significance of the slope of a trend line?

Back

The slope indicates the rate of change between the two variables represented in the scatter plot.

Front

What is the purpose of a scatter plot?

Back

To visually display the relationship between two quantitative variables.