Scatter Plots Review

Front

What does a negative correlation in a scatter plot indicate about the relationship between x and y values?

Back

As x increases, y decreases.

Front

What is a possible equation for a line of best fit in a scatter plot with a negative correlation?

Back

y = -5/2x + 20

Front

If the trend line equation is y = 1/2x + 1, how many laps can a bicycle make around the park in 23 minutes?

Back

44 laps

Front

How many pages would be in a book with 6 chapters if the trend line predicts 10 pages per chapter?

Back

60 pages

Front

If a book has 140 pages, how many chapters would it have according to the trend line?

Back

14 chapters

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables.

Front

What does the slope of a trend line represent in a scatter plot?

Back

The slope represents the rate of change between the two variables.

Front

What is the purpose of a line of best fit in a scatter plot?

Back

To summarize the relationship between the variables and make predictions.

Front

What does it mean if a scatter plot has no correlation?

Back

There is no discernible relationship between the x and y values.

Front

How can you determine the strength of a correlation in a scatter plot?

Back

By observing how closely the data points cluster around the line of best fit.