- 2. What is the branch of mathematics that involves the collection, organization, analysis, interpretation, and presentation of data?
A) Data Analysis
B) Algebra
C) Statistics
D) Probability
- 3. These are individual pieces of factual information recorded and used for the purpose of analysis.
A) Data
B) Parameters
C) Variables
D) Analysis
- 4. Which branch of statistics deals with the organization and presentation of data without making generalizations about the larger group?
A) Qualitative Statistics
B) Quantitative Statistics
C) Inferential Statistics
D) Descriptive Statistics
- 5. A study uses the test scores of a sample of 50 students to predict the average score of all 500 students in the university. This is an example of:
A) Central Statistics
B) Inferential Statistics
C) Descriptive Statistics
D) Predictive Statistics
- 6. The entire group of individuals, objects, or measurements about which a researcher wishes to draw conclusions is called the:
A) Statistic
B) Sample
C) Variable
D) Population
- 7. A subset or portion of the population that is actually observed and measured in a study is called a:
A) Census
B) Parameter
C) Variable
D) Sample
- 8. Eye color, gender, and religious affiliation are examples of which type of variable?
A) Discrete
B) Qualitative
C) Continuous
D) Quantitative
- 9. Variables that are numerical and can be ordered or ranked (e.g., age, height, income) are classified as:
A) Categorical
B) Quantitative
C) Nominal
D) Observational
- 10. A variable whose value is obtained by counting and can only assume a finite or countable number of values (e.g., number of cars sold) is a:
A) Nominal Variable
B) Continuous Variable
C) Ratio Variable
D) Discrete Variable
- 11. A variable whose value is obtained by measuring and can assume an infinite number of values between any two specific values (e.g., temperature) is a:
A) Interval Variable
B) Qualitative Variable
C) Continuous Variable
D) Discrete Variable
- 12. At which level of measurement is data classified into distinct categories, and the order or rank is meaningless (e.g., flavors of yogurt)?
A) Nominal
B) Ratio
C) Ordinal
D) Interval
- 13. The level of measurement where data can be arranged in some meaningful order or rank, but the differences between values are not significant (e.g., a student’s letter grade of A, B, or C) is:
A) Ratio
B) Nominal
C) Interval
D) Ordinal
- 14. This level of measurement has meaningful differences between data, but it lacks a true starting point or true zero (e.g., temperature in Celsius or Fahrenheit).
A) Nominal
B) Ordinal
C) Interval
D) Ratio
- 15. Which is the highest level of measurement where a true zero point exists (meaning zero indicates the absence of the quantity), and ratios are meaningful (e.g., height, weight, income)?
A) Nominal
B) Interval
C) Ratio
D) Ordinal
- 16. This method of data collection is used when the objective is to determine a cause-and-effect relationship under controlled conditions.
A) Observation Method
B) Registration Method
C) Survey Method
D) Experiment Method
- 17. The organization of raw data into classes with their corresponding frequencies is best presented using a:
A) Pie Chart
B) Line Graph
C) Scatter Plot
D) Frequency Distribution Table
- 18. Which type of graph is most appropriate for showing the change in a variable over time?
A) Histogram
B) Line Graph
C) Bar Graph
D) Pie Chart
- 19. The use of a small, manageable number of subjects to represent the entire group in a study is the primary reason for conducting:
A) An Experiment
B) Census
C) Registration
D) Sampling
- 20. Which measure of central tendency is calculated by finding the sum of all values in a data set and dividing by the number of values?
A) Mean
B) Median
C) Mode
D) Range
- 21. The single value that divides an array of observations into two equal parts is the:
A) Mean
B) Median
C) Weighted Mean
D) Mode
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