Scatterplot Graphs

Based on the scatterplot, what is the best prediction of the average number of hours a person spends at work every week, if that person spends an average of 10 hours on recreational activities every week?

• 33 hours

• 85 hours

• 50 hours

• 65 hours

Based on this scatterplot, approximately what score would a student with 6 absences expect to receive on the final exam?

• 65

• 92

• 67

• 76

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

The scatterplot shows the amount of rainfall during six thunderstorms and the length of time that each storm lasted. Based on the scatterplot, which statement is true?

• During each storm that lasted longer than 1 hour, there was less than 1 inch of rain.

• During each storm that lasted longer than 1 hour, there was more than 1 inch of rain.

• No storms produced more than 2 inches of rain.

• No storms lasted longer than 1 hour.

Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household of 7 people?

• $240

• $190

• $210

• $300

Based on the scatterplot, what is the best prediction of the resting heart rate of a person who exercises an average of 8 hours each week?

• 30 beats per minute

• 50 beats per minute

• 55 beats per minute

• 60 beats per minute

Choose ALL graphs that have a non-linear trend.

• 1

• 2

• 3

• 5

In a scatterplot, an outlier...

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

• ...is a point on the origin

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

• ...is a group of points that are close together

The scatterplot below suggests which of the following types of data relationship?

• Weak, negative

• weak, positive

• strong, negative

• strong, positive

What type of correlation does this scatterplot represent?

• negative correlation

• no correlation

• positive correlation