Bivariate Data Correlations

Which options below are a bivariable data set?

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What form of association does this scatterplot indicate?

• Non-linear

• Linear

• Free-form

What type of linear association does this scatterplot indicate?

• Strong negative

• Strong Positive

• Weak Positive

• Weak Negative

Which of the following best represents the linear association with Pearson's Correlation Coefficient r=1?

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• 
• 
• 

Which tools can you use to graph the a scatterplot and line of best fit (the least square regression line) ?

• Desmos

• Geogebra

• Excel

• All of the above

What is the difference between interpolation and extrapolation?

• Interpolation = predicting the x value. Extrapolation = predicting the y value.

• Interpolation = predicting values within the dataset range.

  Extrapolation = predicting values outside the dataset range.

• Interpolation = data that lands on the LSRL

  Extrapolation =

  data that is not on the LSRL

• Interpolation = existing data

  Extrapolation = estimated values

The scatterplot shows the average annual female income plotted against average annual male income for 15 countries.

Predict the female income given the male income of $20,000.

• $21,000

• $25,000

• $28,000

• $30,000

How confident are you in bivariate data analysis?

• I'm not too sure about some of the terms and concepts. I want to go over some things again.

• I'm not familiar with the technology that I can do an analysis with. I want to review them again.

• I'm ready for some investigation. I want to find out what else to improve while problem-solving.

• I haven't been doing much work, therefore I'm not sure how well I know the topic.

• I get the concepts and the basic procedures. I'm ready to sharpen my skills through contextual investigations.