Correlation Coefficient and Line of best fit

Describe a correlation with a coefficient of  $r=.92$  

• strong positive

• strong negative

• weak positive

• weak negative

Tags

CCSS.HSS.ID.B.5

As x increases, y increases

• A) correlation coefficient

• B) causation

• C) positive association

• D) negative association

Tags

CCSS.HSS.ID.C.9

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.HSS.ID.C.8

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

• -0.19 weak
• -0.19 moderate
• 0.04 weak
• 0.04 strong

Tags

CCSS.HSS.ID.C.8

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

• y = -2.28x + 51.08
• y = 51.08x - 2.28
• y = 0.06x - 0.26
• y = -2.28x - 0.26

Tags

CCSS.8.EE.C.8C

What is the line of best fit?

• f(x)= 5x+1.82
• cannot be determined
• f(x)= 1.82x + 5.02
• f(x)= 1.1x + 4.2

Tags

CCSS.8.EE.B.5

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

Calculate the Pearson's Correlation Coefficient between age and reaction time (3 significant figures).

Tags

CCSS.HSS.ID.C.8

Calculate the Pearson's Correlation Coefficient between age and number of hours watching a TV a week (3 significant figures).

Tags

CCSS.HSS.ID.C.8

Calculate Spearman's rank correlation coefficient between age and reaction time (3 significant figures).