Statistics and Data Collection Quiz

What is the primary purpose of statistics?

• Collecting and organizing data

• Analyzing and interpreting data

• Presenting data

• All of the above

Which of the following best defines a population in statistics?

• A specific group selected for study

• All individuals or items relevant to a particular study

• A set of numerical data

• A subset of a larger dataset

A sample is:

• A complete collection of all possible observations

• A portion or subset of a population used in analysis

• The total number of respondents in a study

• A summary of statistical findings

What are the two main types of data?

• Discrete and Continuous

• Primary and Secondary

• Qualitative and Quantitative

• Ordinal and Nominal

Qualitative data refers to:

• Data that consists of numerical values

• Data that is measured using scales or categories

• Data that can be counted or ranked

• Data obtained through experiments

Which of the following is an example of quantitative data?

• Eye color

• Political party affiliation

• Number of books in a library

• Texture of a fabric

Nominal data refers to:

• Data with meaningful differences between values

• Data that is ranked or ordered

• Data that consists of names, labels, or categories

• Data that can be measured on an infinite scale

Which of the following is an example of ordinal data?

• Student ID numbers

• T-shirt sizes (Small, Medium, Large)

• Temperature in Fahrenheit

• Weight of a person

Interval level of measurement is characterized by:

• A meaningful zero point

• Differences between values but no true zero

• Classification based on labels

• Ranking without specific numerical differences

Ratio level of measurement includes which of the following examples?

• Temperature in Celsius

• Student grades (A, B, C, D)

• Height of a person

• Gender classification