Statistics Summer Class Exam

Data that can be counted or measured numerically is called:

• Categorical data

• Nominal data

• Numerical data

• Ordinal data

Which of the following is an example of nominal data?

• Age of a student (in years)

• Salary of an employee

• Color of a car (red, blue, green)

• Level of education (high school, bachelor's degree, master's degree)

Data that can be ranked or ordered, but the difference between each level isn't necessarily meaningful, is called:

• Numerical data

• Nominal data

• Discrete data

• Ordinal data

Data that can take on any value within a specific range, including decimals, is called:

• Discrete data

• Continuous data

• Ordinal data

• Nominal data

Data that can only take on specific whole number values is called:

• Continuous data

• Nominal data

• Ordinal data

• Discrete data

Statistics is a branch of mathematics concerned with what?

• Creating data and doing experiments

• Collecting, analyzing, interpreting, and presenting data

• Destroying data

• Summarizing opinions

Which of the following is NOT a method for collecting data?

• Designing surveys

• Observational studies

• Manipulating data

• Conducting interviews

What is the main purpose of analyzing data?

• To directly memorize all data points

• To organize data chronologically

• To uncover patterns and relationships

• To delete irrelevant data

Interpreting data involves:

• Just reporting the raw data

• Drawing conclusions

• Collecting more data

• Ignoring unexpected results

What kind of statistics summarizes the key characteristics of a dataset?

• Descriptive statistics

• Inferential statistics

• Experimental statistics

• Visual statistics