Line of Best Fit Flashcard

Front

What is the correlation between study time and test grades?

Back

Positive correlation means that as study time increases, test grades also tend to increase.

Front

Describe the relationship shown on a scatter plot where more training time leads to faster running times.

Back

As the time spent training increases, the time to run 100 m decreases.

Front

How can you predict the number of chapters in a book with 180 pages using a trend line?

Back

Use the trend line to estimate that a book with 180 pages would have approximately 18 chapters.

Front

What does it mean if the number of visitors increases as the temperature increases?

Back

This indicates a positive correlation between temperature and the number of visitors.

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.

Front

Why might a line not be considered a line of best fit?

Back

A line is not a line of best fit if it does not pass through the middle of the data set.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points.

Front

What does a positive correlation look like on a scatter plot?

Back

A positive correlation appears as a line that slopes upwards from left to right.

Front

What does a negative correlation look like on a scatter plot?

Back

A negative correlation appears as a line that slopes downwards from left to right.

Front

What does 'no correlation' mean in the context of a scatter plot?

Back

No correlation means there is no discernible relationship between the two variables.