Scatter Plots and Trend Lines (Unit 5 Review)

Front

What does a slope of -5/7 indicate in a real-world context?

Back

It means you lose 5 hours of sleep for every 7 cups of coffee consumed.

Front

Which graph best fits the data in a scatter plot?

Back

Graph 1.

Front

What type of correlation exists between the number of siblings you have and your weight?

Back

None.

Front

In a scatter plot with a negative correlation, what happens to y as x increases?

Back

As x increases, y decreases.

Front

If a student has 6 absences, what approximate score should they expect on the final exam based on the scatterplot?

Back

76.

Front

What is a scatter plot?

Back

A graph that displays values for two variables for a set of data.

Front

What does a positive correlation indicate in a scatter plot?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate in a scatter plot?

Back

As one variable increases, the other variable decreases.

Front

What is a trend line?

Back

A line that best represents the data points in a scatter plot.

Front

How do you determine the slope of a trend line?

Back

By calculating the change in y over the change in x (rise/run).