Statistics Quiz

What is a parameter in statistical terms?

• A. A piece of data from a whole population, not from a sample.

• B. A piece of data from a sample, not a whole population.

• C. All the members of a set.

• D. A variable for which the possible values belong to a limited set of qualitative responses.

Which of the following is an example of a quantitative variable?

• The type of visual art form: photography, painting, sculpting, or drawing.

• The average commute time for Tampa Catholic students.

• The color of cars in a parking lot.

• The brand of smartphones used by students.

What type of statistical variable is represented by the question "What is the typical number of apps a teenager has on a smartphone?"

• Quantitative

• Categorical

• Nominal

• Ordinal

What percentage of people prefer Basketball as their favorite Summer Olympic sport according to the chart?

• 20%

• 25%

• 30%

• 35%

What is the main purpose of distinguishing between populations and samples in statistics?

• To identify the largest group

• To determine the method of data collection

• To make accurate inferences about the population

• To avoid conducting surveys

What is a parameter?

• A measure that describes a sample of the population.

• A measure that describes a population.

• A measure that describes a subset of the sample.

• A measure that describes a specific individual.

The average salary of all assembly-line employees at Toyota is $33,000. Is this a statistic or a parameter?

• Statistic

• Parameter

• Both

• Neither

What type of variable has numerical values that can be meaningfully compared, added, subtracted, or otherwise operated upon?

• Quantitative variable

• Categorical variable

• Qualitative variable

• Descriptive variable

What is a statistic?

• A piece of information about a variable based on a sample or subgroup chosen from the population.

• A piece of information about a variable based on the entire population.

• A type of quantitative variable.

• A type of categorical variable.

Which of the following best describes a quantitative variable?

• A variable with numerical values that can be meaningfully compared.

• A variable with a limited number of possible responses.

• A variable that is based on a sample.

• A variable that is based on the entire population.