Scatterplots and Outliers

What are the coordinates of the outlier?

• (9,1)

• (0,3)

• (1,9)

• There is not an outlier.

Describe the strength and direction of the trend

• Weak Negative Trend

• Strong Negative Trend

• Weak Positive Trend

• Strong Positive Trend

Which variables would the scatter plot most likely to represent?

• A. The number of siblings a person has and the person’s GPA

• B. The number of guests at a hotel and the total water consumption

• C. The total number of miles driven and the total gallons of gas used

• D. The number of people at a concert and the total concession sales

Which of the scatter plots below shows a stronger association, and why?

• Scatter plot A; its slope is greater than B.

• Scatter plot A; its points of data are closer together than B.

• Scatter plot B; its slope is positive.

• Scatter plot B; it does not have any data points that are outliers.

In a scatterplot, an outlier...

• ...is something we didn't learn 8th grade

• ...is a puppet with a long nose named Pinocchio

• ...is a point that is far outside the main cluster of points/ordered pairs

• ...is a really naughty point who doesn't tell the truth when outside

What is the outlier in the scatter plot?

• (10, 45)

• (9, 20)

• (1, 35)

• No outlier

What are the coordinates of the outlier?

• (2,1)

• (4,3)

• (1,2)

What is the outlier in the scatter plot?

• (30, 12)

• (1, 2)

• (40, 1)

• No outlier

What are the coordinates of the outlier?

• (1, 9)

• (9, 1)

• (5.2 ,3.2)

• (7.5, 7.5)

What are the coordinates of the outlier?

• (3,4)

• (4,3)

• (3,10)