Scatter Plots STAAR

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours

• 35 hours

• 45 hours

• 15 hours

What is a scatter plot?

• A graph that shows the relationship of two data sets.

• A graph drawn using rectangular bars to show how large each value is.

• A graph that shows information that is connected in some way.

• A graph that shows data changing over time.

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes

• No

The scatter plot shows the numbers of bushels filled and the numbers of apples picked.  How many bushels are needed for 350 apples?

• 20 Bushels

• 16 Bushels

• 15 Bushels

• 14 Bushels

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade. 

• No relationship exists between the number of books students read and their English grades. 

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes

• No

Weak negative correlation Strong negative correlation Weak positive correlation Strong positive correlation

• Weak negative correlation

• Strong negative correlation

• Weak positive correlation

• Strong positive correlation