Quiz 2

Which of the following is a categorical variable?

• Age

• Weight

• Height

• Gender

In statistics, a population refers to:

• A subset of individuals selected for a study

• The entire group of individuals or items under consideration

• A sample selected from a larger group

• The mean of a data set

Which of the following is a parameter?

a) Sample mean b) Population standard deviation c) Sample proportion d) Sample range

• Sample mean

• Population standard deviation

• Sample proportion

• Sample range

Which branch of statistics deals with the organization and summarization of data?

• Descriptive statistics

• Inferential statistics

• Data Mining

• Machine Learning

Which sampling method involves dividing the population into groups and then selecting samples from each group?

• Simple random sampling

• Cluster sampling

• Interval Stratified sampling

• Systematic sampling

What is an example of non-probability sampling?

• Simple random sampling

• Stratified sampling

• Convenience sampling

• Systematic sampling

Which level of measurement has a true zero point? a) Nominal b) Ordinal c) Interval d) Ratio

• Ordinal

• Nominal

• Interval

• Ratio

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

• Social security number

• Score

• Height

• Blood type

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

• Number of children in a family

• Type of pet owned

• Temperature

• Gender

Which of the following best defines a population?

• A subset of individuals selected for a study

• The entire group of individuals or items under consideration

• A parameter of interest

• The mean of a data set