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?

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.

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.

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