STATISTICS EXAMINATION QUESTIONS AND CORRECT ANSWER WITH EXPLANATION GRADED A+ STUDY GUIDE

STATISTICS EXAMINATION QUESTIONS AND CORRECT
ANSWER WITH EXPLANATION GRADED A+ STUDY GUIDE
SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Statistics is the science of:
A. Collecting, analyzing, and interpreting data
B. Drawing diagrams only
C. Solving equations only
D. Chemistry reactions
Answer: A
Rationale: Statistics deals with data analysis.

2. Descriptive statistics deals with:
A. Summarizing data
B. Predicting future
C. Algebra only
D. Geometry only
Answer: A
Rationale: It describes data features.

3. Inferential statistics deals with:
A. Making conclusions from data
B. Drawing graphs only
C. Counting only
D. Ignoring data
Answer: A
Rationale: It draws population conclusions.

4. Population is:
A. Entire group of interest
B. Sample only
C. Subset only
D. Random value
Answer: A
Rationale: Full set of data.

5. Sample is:
A. Subset of population

, B. Entire population
C. Constant value
D. Graph only
Answer: A
Rationale: Selected portion.

6. Variable is:
A. Characteristic that changes
B. Constant value
C. Graph only
D. Equation only
Answer: A
Rationale: Measurable attribute.

7. Qualitative data is:
A. Non-numerical data
B. Numerical only
C. Constant
D. Graph only
Answer: A
Rationale: Categories or labels.

8. Quantitative data is:
A. Numerical data
B. Words only
C. Pictures only
D. Random only
Answer: A
Rationale: Measurable numbers.

9. Discrete data is:
A. Countable values
B. Continuous only
C. Infinite only
D. Graph only
Answer: A
Rationale: Separate values.

10. Continuous data is:
A. Measurable within range

, B. Countable only
C. Fixed only
D. None
Answer: A
Rationale: Any value in interval.

11. Frequency is:
A. Number of occurrences
B. Average
C. Median
D. Mode
Answer: A
Rationale: Count of data points.

12. Relative frequency is:
A. Proportion of total
B. Sum
C. Difference
D. Constant
Answer: A
Rationale: Fraction of total.

13. Mean is:
A. Average
B. Middle value
C. Most frequent
D. Range
Answer: A
Rationale: Sum divided by count.

14. Median is:
A. Middle value
B. Average
C. Mode
D. Range
Answer: A
Rationale: Central position.

15. Mode is:
A. Most frequent value