What is the definition of statistics?

• The study of stars and planets

• The collection, evaluation, and interpretation of data

• The study of human behavior

• The analysis of historical events

What type of data represents a measurable quantity?

• Categorical or Qualitative Data

• Numerical or Quantitative Data

• Descriptive Data

• Nominal Data

Which of the following is NOT an example of numerical or quantitative data?

• Population

• Number of M&M’s

• Breed of dog

• Number of defective parts

What is the range in data variation?

• The average of all data values

• The difference between the lowest and highest data value

• The sum of all data values

• The middle value of the data set

Which type of standard deviation is more useful for applications in practice?

• Population Standard Deviation

• Sample Standard Deviation

• Both are equally useful

• Neither is useful

What does the sample standard deviation measure?

• The dispersion of data around the population mean

• The dispersion of data around the sample mean

• The average of the data

• The total sum of the data

What is the main difference between population standard deviation and sample standard deviation?

• Population standard deviation is a statistic, sample standard deviation is a parameter

• Population standard deviation measures dispersion around the sample mean, sample standard deviation measures dispersion around the population mean

• Population standard deviation represents a parameter, sample standard deviation represents a statistic

• There is no difference