- 1. There is a positive correlation between the number of miles driven and the number of people in a car.
A) FALSE
B) TRUE
- 2. Is the observation true or false?
A) TRUE
B) FALSE
A) A low positive correlation
B) No correlation
C) A low negative correlation
D) A high negative correlation
A) Positive association
B) High negative association
C) Negative association
D) No association
- 5. There is a strong correlation between the number of news papers sold and the humidity of a particular city.
A) TRUE
B) FALSE
- 6. In a scatter plot, the two variables are positively correlated if the y-coordinate decreases as the x-coordinate increases.
A) FALSE
B) TRUE
- 7. Josh polled people in his town. He recorded age versus the number of hours spent on the Internet per week. Use a scatter plot to determine what relationship exists between the age and the number of hours spent on the Internet per week.
A) No association
B) None of the above
C) Positive association
D) Negative association
A) No association
B) Strong negative association
C) Positive association
D) Strong positive association
- 9. The correlation between two sets of data can be _____.
A) Zero
B) Positive
C) Negative
D) All of the above
- 10. Consider the scatter plot. It shows a data set that was obtained by collecting the ages and heights of 5 children. Determine what relationship exists in the data.
A) Height decreases with age
B) Height increases with age
C) There is no relationship between height and age
D) None of the above
- 11. In a scatter plot, two variables are negatively correlated if the y-coordinate decreases as the x-coordinate increases.
A) TRUE
B) FALSE
- 12. Which of the following best describes the association between the amount of food on a plane and the amount of time remaining in the flight?
A) Low positive association
B) Strong positive association
C) Negative association
D) No association
- 13. What do we call the circled point in the scatterplot below?
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