Exploring Scatter Plots and Correlation

What is another term for correlation?

• Regression

• Causation

• Association

• Deviation

In a scatter plot, what does a positive correlation indicate?

• Both variables increase

• One variable increases while the other decreases

• Both variables decrease

• There is no relationship between the variables

Which of the following best describes a strong positive correlation?

• Data points are scattered randomly

• Data points form a horizontal line

• Data points form a line falling from left to right

• Data points cluster around a rising straight line

What does a negative correlation indicate in a scatter plot?

• Both variables increase

• Both variables decrease

• One variable increases while the other decreases

• There is no relationship between the variables

Which of the following best describes a weak negative correlation?

• Data points cluster around a falling straight line

• Data points form a horizontal line

• Data points form a line rising from left to right

• Data points are scattered randomly

What does 'no correlation' mean in a scatter plot?

• One variable increases while the other decreases

• There is no apparent relationship between the variables

• Both variables decrease

• Both variables increase

Which of the following statements is true about correlation and causation?

• Causation always implies correlation

• Correlation always implies causation

• Correlation does not imply causation

• Causation does not imply correlation

Which relationship can best be described as causal?

• Number of correct answers on a test and the test score

• Shoe size and running speed

• Height and intelligence

• Number of students in a class and the number of students with brown hair

What is the first step in creating a scatter plot by hand?

• Draw a line of best fit

• Plot the points

• Label the axes

• Determine the correlation

When using a calculator to create a scatter plot, what should you do after entering the data?

• Press zoom and then number 9

• Determine the correlation

• Draw a line of best fit

• Turn off the stat plot