Scatter Plots and Correlation

Describe the strength of the linear relationship,

given the correlation coefficient: r = 0.3

• Strong positive 

• Weak positive

• Strong negative

• Weak negative 

Describe the strength of the linear relationship,

given the correlation coefficient: r = -0.89

• Strong positive 

• Weak positive 

• Strong negative 

• Weak negative 

Select the answers that are true about a correlation coefficient.

• The correlation coefficient is between -1 and 1

• The correlation coefficient can be greater than 1

• A weak correlation has points closer to the line of best fit.

• A strong correlation has points closer to the line of best fit.

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases
• As x increases, y increases
• As x decreases, y decreases

Tags

CCSS.HSF-LE.A.1B

If the correlation coefficient of a table of data is 0.85, what is true about the line of best fit?

• There is a weak, positive relationship

• There is a strong, positive relationship

• There is a weak, negative relationship

• There is a strong, negative relationship

What would the correlation be between math grades and the time it takes to run a mile ?

• Postive Correlation
• Negative Correlation
• No Correlation
• Cannot Be Determined

Tags

CCSS.HSF-LE.A.1B

Describe the correlation for the given situation:

A student who spends a great deal of time studying and the amount of candy that they eat

• Positive Correlation

• Negative Correlation

• No Correlation

Select which scatter plot has a correlation coefficient

closest to r = -0.85

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Select which scatter plot has a correlation coefficient

closest to r = 0.79

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Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive