Exploring Bivariate Data

The two top-selling book stores for a company list their sales figures for the first 6 months of the year. Sales amounts are in thousands of dollars. What was the difference in the sales figure for August?

• 6

• 5

• 6 000

• 5 000

In how many months did the City Central store sell more books than the Chatswood store?

• 1

• 2

• 3

• 4

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 scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

What type of association does this graph have?

• positive

• negative

• none

• all of the above

What type of correlation is shown in the scatter plot?

• Positive Linear Correlation

• Negative Linear Correlation

• Non-Linear Correlation

• No Correlation

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation

• Positive Association
• Negative Association
• No Association
• Non-Linear Association