Math 1 Test Prep

The correlation coefficient is a number "r" such that: 

• -1<r<1
• -1>r>1
• -1≤r≤1
• -1≥r≤1

r=-0.89

• Strong positive 
• Weak positive 
• Strong negative 
• Weak negative 

r=0.3

• Strong positive 
• Weak positive
• Strong negative
• Weak negative 

Describe the relationship.

• Strong positive correlation
• Strong negative correlation
• Weak positive correlation
• No correlation

What type of association does this scatter plot represent?

• positive linear association
• negative linear association
• no association
• nonlinear association

Estimate the correlation coefficient

• r=-1
• r=1
• r=-0.5
• r=0.5

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• No Correlation

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• 0.07 weak
• -0.26 weak
• -0.26 moderate
• 0.07 strong

Tags

CCSS.HSF-LE.A.1B

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Find the equation of the line of best fit for this table.

• y = -0.18x + 6.47
• y = 6.47x - 0.18
• y = 0.04x - 0.19
• y = -0.18x - 0.19

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7