Interpretation of Scatter Plots

What type of association does this graph have?

• positive

• negative

• none

• all of the above

The following scatter plot shows the weights and lengths of some dinosaurs.  Which statement accurately describes the information?

• The information shows a positive association.  The weight of a dinosaur tends to increase according to its length.

• The information shows a negative association.  the weight of a dinosaur tends to decrease according to its length.

• The information shows no association.  The weight and length vary according to the type of dinosaur.

• The information shows no association. The relationship between the weight and length of a dinosaur is uncertain.

Which statement is the most accurate interpretation of the data?

• As time went by, the temperature tended to decrease

• As time went by the temperature tended to increase

• There is no relationship between time and temperature.

The police department tracked the number of ticket writers and number of tickets issued for the past 8 weeks.  The scatter plot shows the results.  Which statement is true?

• More ticket writers results in fewer tickets issued.

• There were 50 tickets issued every week.

• When there are 10 ticket writers, there will be 800 tickets issued.

• More ticket writers results in more tickets issued.

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

the slope is -5/7, what does that mean?

• gain 5 hour of sleep for 7 cups of coffee

• lose 5 hours of sleep for 7 cups of coffee

• lose 7 cups of coffee for 5 hours of sleep

• lose 5 cups of coffee for 7 hours of sleep

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. 

Which conclusion is best supported by the scatterplot?

• As the length of a call increases, the cost of the call increases.

• As the length of a call increases, the cost of the call remains the same.

• As the length of a call increases, the cost of the call decreases.

• There is no relationship between the length of a call and the cost of the call.

Describe the association for the scatterplot based on data plotted.

• As the weeks increase, the amount of money on the gift card increases.

• As the weeks decrease, the amount of money on the gift card increases.

• There is no relationship between the time in weeks and the amount of dollars.

• As the weeks increase, the amount of money on the gift card decreases.

The chart uses dots to represent values for two different numeric values.

• Histogram

• Bar Graph

• Scatter Plots

• Coordinate System