A scatter plot shows that as the number of hours worked increases, weekly pay generally increases. Which situation describes an outlier?

Working 20 hours and earning 300 dollars.

Working 40 hours and earning 600 dollars.

Working 35 hours and earning 100 dollars.

Working 10 hours and earning 150 dollars.

A car dealership plots the age of a car against its resale value. The data shows that older cars are typically worth less. Which of these cars would be an outlier?

A 2-year-old car with a high resale value.

A 10-year-old car with a low resale value.

A 50-year-old classic car with a very high resale value.

A 5-year-old car with a moderate resale value.

A scatter plot relates daily temperature to the number of coffees sold. The trend shows that fewer coffees are sold on warmer days. Which point is an outlier?

A cool day with moderate sales.

Scatter Plots Practice — Grade 7 math

Section 9.1: Scatter Plots — Practice Questions

1. In a scatter plot, what is the term for a data point that is located far away from the main cluster of points?
- A. A trend
- B. An outlier
- C. A cluster
- D. A variable
2. A data point that is very different from the rest of the data in a scatter plot and does not follow the main trend is called an ___.
3. A scatter plot shows that as the number of hours worked increases, weekly pay generally increases. Which situation describes an outlier?
- A. Working 20 hours and earning 300 dollars.
- B. Working 40 hours and earning 600 dollars.
- C. Working 35 hours and earning 100 dollars.
- D. Working 10 hours and earning 150 dollars.
4. A car dealership plots the age of a car against its resale value. The data shows that older cars are typically worth less. Which of these cars would be an outlier?
- A. A 2-year-old car with a high resale value.
- B. A 10-year-old car with a low resale value.
- C. A 50-year-old classic car with a very high resale value.
- D. A 5-year-old car with a moderate resale value.
5. A scatter plot relates daily temperature to the number of coffees sold. The trend shows that fewer coffees are sold on warmer days. Which point is an outlier?
- A. A cold day with many sales.
- B. A warm day with few sales.
- C. A warm day with many sales.
- D. A cool day with moderate sales.
6. A scatter plot shows that as the $x$-values increase, the $y$-values also tend to increase along an approximate straight line. This pattern indicates a ___ linear relationship.
7. If a scatter plot of two variables shows points scattered randomly with no discernible pattern, it can be concluded that there is ___ relationship between the variables.
8. A scatter plot shows the height of a thrown baseball over time. The points form a clear arch shape. What type of relationship does this represent?
- A. Positive linear
- B. Negative linear
- C. Nonlinear
- D. No relationship
9. A scatter plot where data points cluster around a straight line that goes down from left to right demonstrates a ___ linear relationship.
10. A scatter plot shows that as $x$ increases, $y$ first increases and then starts to decrease, forming a distinct hill shape. What type of relationship is this?
- A. Positive linear
- B. Negative linear
- C. Nonlinear
- D. No relationship