Descriptive Statistics

What type of data is collected in the decennial census by the U.S. Census Bureau?

• Only time series data

• Quantitative and categorical data

• Only sample data

• Qualitative data only

Which of the following is a measure of location?

• Coefficient of Variation

• Variance

• Standard Deviation

• Mode

What is the purpose of the Current Population Survey (CPS)?

• To collect data on retail sales

• To count the total U.S. population

• To estimate employment and unemployment rates

• To analyze stock market trends

Which of the following describes cross-sectional data?

• Data that is only qualitative

• Data collected from several entities at the same time

• Data that cannot be analyzed statistically

• Data collected over several time periods

What does a histogram represent?

• A type of qualitative data

• A measure of central tendency

• A graphical representation of a frequency distribution

• A summary of categorical data

Which of the following is NOT a type of data mentioned in the text?

• Ordinal data

• Cross-sectional data

• Categorical data

• Quantitative data

What is the purpose of conditional formatting in Excel?

• To filter out all data

• To sort data alphabetically

• To highlight data that meets certain conditions

• To create pie charts

What is a frequency polygon?

• A line graph connecting the midpoints of the bins of a histogram

• A type of pie chart

• A bar chart showing categorical data

• A table summarizing data

What is the most commonly used measure of location for a variable?

• Mode

• Mean

• Median

• Geometric Mean

Which measure of central location is defined as the value in the middle when data is arranged in ascending order?

• Variance

• Mean

• Median

• Mode