Statistics Quiz 1 (9/23)

Univariate means

• two variables

• multiple variables

• one variable

• none of the above

Bivariate means " ______ variables", in other words there are ______ types of data

• two

• one

• three

• multiple

What is the difference between univariate & bivariate data?

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Which of the following graphs are used to represent univariate data?

• Histogram

• Pie Chart

• Back-to-Back Stem-and-Leaf Plots

• Box and Whisker Plots

• All of these graphs may be used to represent univariate data.

Which of the following graphs do we use to represent bivariate data?

• Histogram

• Bar Graph

• Scatter Plot

• Pie Chart

Give an example of two variables in your life that can be quantified (represented by a number) and are related and describe the relationship between them.

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The data that is graphed on the x-axis is called the independent variable and the data that is graphed on the y-axis is called the dependent variable. Explain why.

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In the Celebrity Guessing Game, you were asked to estimate the age of 20 celebrities. Their actual ages were then revealed. Which data should be graphed on the x-axis?

• Actual Age

• Estimated Age

The relationship and measure of a linear association that is shown by the two variables in a scatter plot is often called:

• Causation

• Correlation

• Outlier

• Can be called all of the above.

When analyzing a scatter plot and describing relationships between the two variables being compared, you must address

• form (linearity), direction, and strength

• type, direction, and strength

• form, slope, and type

• strength, slope, and intercept