Statistics 1

1. The science of statistics includes which of the following:

• A. Organizing data

• B. Presenting data

• C. Interpreting data

• D. All of the above

In descriptive statistics our main objective is to

• A. Describe the population

• B. Describe the data we collected

• C. Infer something about the population

• D. Compute an average

Which of the following statements is true regarding a population?

• A. It must be a large number of values

• B. It must refer to people

• C. It is a collection individuals, objects, or measurements

• D. None of the above

Tags

CCSS.6.SP.A.3

Which of the following statements is true regarding a sample?

• A. It is a part of population

• B. It must contain at least five observations

• C. It refers to descriptive statistics

• D. All of the above are correct

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A qualitative variable

• A. Always refers to a sample

• B. Is not numeric

• C. Has only two possible outcomes

• D. All of the above are correct

A discrete variable is

• A. An example of a qualitative variable

• B. Can assume only whole number values

• C. Can assume only certain clearly separated values

• D. Cannot be negative

A nominal scale variable

• A. is usually the result of counting something

• B. Has a meaningful zero point

• C. May assume negative values

• D. Cannot have more than two categories

The ratio scale of measurement

• A. Usually involves ranking

• B. Cannot assume negative values

• C. Has a meaningful zero point

• D. Is usually based on counting

The ordinal scale of measurement

• A. Has a meaningful zero point

• B. Is based on ranks

• C. Cannot assume negative values

• D. All of the above

Which of the following are examples of continuous variables?

• A. Birth weight of babies

• B. Distance between Melbourne and Sydney

• C. Age of the CEOs of the Fortune 500 companies

• D. All of the above