CCSS.Math.Content.HSS.ID.C.8

Estimate the correlation coefficient for this scatterplot.

• r = 1.2
• r = 0.89
• r = 0
• r = -0.89

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CCSS.Math.Content.HSS.ID.C.8

What kind of correlation?

• Positive
• Negative
• No

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CCSS.Math.Content.HSS.ID.C.8

What kind of correlation?

• Positive
• Negative
• No

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CCSS.Math.Content.HSS.ID.B.6

CCSS.Math.Content.HSS.ID.C.8

What kind of correlation?

• Positive
• Negative
• No

Tags

CCSS.Math.Content.HSS.ID.B.6

CCSS.Math.Content.HSS.ID.C.8

What is a trend line that shows the most accurate relationship between x and y and is is very close to most of the data points?

• linear regression
• no correlation
• trend line
• line of best fit

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CCSS.Math.Content.HSS.ID.B.6

CCSS.Math.Content.HSS.ID.C.8

A perfect negative correlation has a correlation coefficient of ____. 

• 1
• -1
• 0

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CCSS.Math.Content.HSS.ID.C.8

Data is analyzed comparing hours studied and grades. It is determined that the correlation coefficient is 0.92. What does this mean?

• There is a strong positive correlation between studying and grades.

• There is a strong negative correlation between studying and grades.

• There is a weak positive correlation between studying and grades.

• There is a weak negative correlation between studying and grades.

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CCSS.Math.Content.HSS.ID.C.8

Which of the following is the WEAKEST negative correlation?

• -0.73

• - 0.34

• - 0.92

• - 0.57

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CCSS.Math.Content.HSS.ID.C.8

Households consume much more electricity when the weather is warmer. What is the correlation?

• Strong Positive

• Strong Negative

• Weak Positive

• Weak Negative

Tags

CCSS.Math.Content.HSS.ID.B.6

CCSS.Math.Content.HSS.ID.C.8

Estimate the correlation coefficient

• r = 1

• r = -1

• r ≈ -0.8

• r ≈ 0.8

• r ≈ -0.5

Tags

CCSS.Math.Content.HSS.ID.B.6

CCSS.Math.Content.HSS.ID.C.8