Lab Part 2: Data and Lines of Best Fit

Front

What is an outlier?

Back

An outlier is a data value that is far removed from the rest of the data values in a set.

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance from all points to the line.

Front

How do you identify the line of best fit on a scatter plot?

Back

The line of best fit can be identified by visually assessing which line minimizes the distance to the majority of data points.

Front

What does a negative correlation in a scatter plot indicate?

Back

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

Front

What is the average of the following test scores: {70, 70, 80, 85, 85, 90, 95, 95, 100, 100}?

Back

The average is 87.

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data.

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 is the purpose of a line of best fit?

Back

The purpose of a line of best fit is to provide a visual representation of the relationship between two variables.

Front

What is an inlier?

Back

An inlier is a data point that lies within the overall pattern of the data set.

Front

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

Back

A good line of best fit will have points that are evenly distributed above and below the line.