Notes: Stats Unit 1 Intro

Multiple Choice

Which of the following best describes a quantitative variable?

• A variable that assigns labels to individuals

• A variable that takes number values as counts or measurements

• A variable that can only be categorized into groups

• A variable that cannot be measured

Multiple Choice

Based on the bar graph of 'Preferred communication method', which method is most preferred among the students?

• Cell phone

• Facebook

• In person

• Text messaging

Multiple Select

Which of the following are examples of categorical variables?

• Biological sex

• Height

• Number of languages spoken

• Preferred communication method

Multiple Choice

Which of the following best describes inferential statistics?

• The process of exploratory data analysis.

• The process of drawing conclusions that go beyond the data at hand.

• The process of collecting data from a sample.

• The process of classifying variables.

Fill in the Blanks

Variables can be classified as

or quantitative.

Multiple Choice

What are the two main learning targets for this section on Data Analysis?

• Identify the individuals and variables in a set of data; Classify variables as categorical or quantitative.

• Describe the history of statistics; Explain the importance of data collection.

• List types of graphs; Define mean and median.

• Summarize the chapter; Discuss the role of technology in statistics.