- 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) FALSE
B) TRUE
A) No correlation
B) A low negative correlation
C) A high negative correlation
D) A low positive correlation
A) Positive association
B) No association
C) Negative association
D) High negative 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) Positive association
B) Negative association
C) No association
D) None of the above
A) No association
B) Positive association
C) Strong positive association
D) Strong negative association
- 9. The correlation between two sets of data can be _____.
A) Positive
B) Zero
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) None of the above
B) Height decreases with age
C) There is no relationship between height and age
D) Height increases with age
- 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) Strong positive association
B) Low positive association
C) Negative association
D) No association
- 13. What do we call the circled point in the scatterplot below?
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