Strong or Weak Correlation Given R Values

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

r=-0.89

• Strong positive 

• Weak positive 

• Strong negative 

• Weak negative 

Estimate the correlation coefficient for this scatterplot.

• r = 1.2

• r = 0.89

• r = 0

• r = -0.89

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

What does the correlation coefficient for the data indicate about the strength of the linear association between the x and y variables Hint: what is the correlation based on the scatter plot

• strong negative

• weak negative

• strong positive

• weak positive

The table shows the lengths and corresponding ideal weights of sand sharks. Which r-value is more accurate for the data?

• r = 0.99

• r = -0.90

• r = 0.09

• r = -0.099

As shown in the table, a person's target heart rate during exercise changes as the person gets older. Use the graphing calculator to find the correlation coefficient (r).

• -0.999

• -0.664

• 0.998

• 1.503

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

Part C: Complete the statement about the correlation coefficient using the words "weak, moderate, or strong" and "positive or negative". There is a _____________ __________ linear association.

• weak

• moderate

• strong

• positive

• negative

Which option below is the correct statement regarding the relational between x and y?

• r = 0.98

  Strong Positive

• r = 0.97

  Strong Positive

• r = 0.99

  Strong Positive

• r = 0.20

  Weak Positive