Bivariate Statistics

What type of association does this graph have?

• positive

• negative

• none

• all of the above

Which scatter plot diagram shows the strongest negative correlation?

• 
• 
• 
• 

• -3

• -13

• -9

• -20

• -5.17

• 18.45

• 1.59

• -11.21

• 28.5

• -21.5

• -14

• 4.5

What percent of people like snowmobiles and skateboards?

• 62%

• 55%

• 43%

• 50%

Describe a correlation with a coefficient of r=0.3

• Strong positive

• Weak positive

• Strong negative

• Weak negative

What is the relative frequency of people that purchased no food?

• 10%

• 60%

• 15%

• 30%

________measures the strength of the linear relationship between the dependent and the independent variable.

• correlation coefficient

• distance value

• residual

As x increases, y decreases.

• no correlation

• negative correlation

• correlation coefficient

• positive correlation