Scatter Plots Meaning

What type of association does this graph have?

• positive

• negative

• none

• all of the above

The graph represents the money in a savings account.  What is the meaning of the y-intercept?

• The initial deposit was $30

• $30 is added to the account each week

• It took 30 weeks to same enough money to open an account

• not enough information

The graph represents the height of a burning candle.  What is the meaning of the y-intercept?

• the time it takes to burn the entire candle

• the rate at which the candle is losing height

• the change in the height of the candle each hour

• the original height of the candle

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

What type of association does this scatter plot represent?

• positive linear association

• negative linear association

• no association

• nonlinear association

Which scatter plot shows a negative relationship?

• Graph A

• Graph B

• Graph C

• Graph D

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

What type of association does this scatter plot represent?

• positive linear association

• negative association

• no association

• nonlinear association

What type of correlation does this graph have?

• Negative 

• no association

• positive