Test paper

What phrase best describes the correlation illustrated?

• No correlation

• Strong negative

• Weak positive

• Strong positive

What relationship is suggested by the scatter diagram?

• Line of best fit

• As age increases, weight increases

• As age increases, weight decreases

• No relationship between age and weight

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

Which scatter plot show a positive relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

What are the coordinates of the outlier?

• (1,9)

• (9,1)

• (2,2)

• y=x

What type of correlation do you think there is between:
Time Spent Watching TV & Grades

• Positive correlation
• Negative correlation
• No correlation
• cannot be determined

What would be the correlation be between study time and test grades?

• positive correlation
• negative correlation
• no correlation
• cannot be determined