Introduction to Statistics Final PRACTICE
EXAM QUESTIONS NEW VERSION LATEST
UPDATE 2025-2026 WITH ACCURATE
ANSWERS GUARANTEED PASS BEST
STUDYING MATERIAL WITH 100+
QUESTIONS
Q: A researcher wants to compare student loan debt for students who attend four-year public
universities with those who attend four-year private universities. She plans to take a random
sample of 100 recent graduates of each type. What type of random sampling is this?
a. Simple random sample
b. Cluster sample
c. Stratified sample
d. Systematic sample
Correct Answer: c. Stratified sample
Rationale: The population is divided into two subgroups (public and private university
graduates), and random samples are taken from each. This is characteristic of stratified
sampling.
2. Level of Measurement: Temperature (°F)
Q: What is the level of measurement for temperature in degrees Fahrenheit?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: c. Interval
Rationale: Interval data have meaningful differences between values but no true zero.
Temperature in °F fits this, as 0°F does not mean “no temperature.”
,3. Level of Measurement: Sports Jersey Number
Q: What is the level of measurement for a sports jersey number?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: a. Nominal
Rationale: Jersey numbers are used for identification and do not have a quantitative or ordered
meaning.
4. Level of Measurement: Letter Grade
Q: What is the level of measurement for letter grades (A, B, C, etc.)?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: b. Ordinal
Rationale: Letter grades imply order but not consistent intervals between them.
5. Level of Measurement: Stat Score
Q: What is the level of measurement for a standardized test score?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: c. Interval
Rationale: Standardized scores have meaningful differences but lack a true zero point.
6. Level of Measurement: Height
Q: What is the level of measurement for height?
,a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: d. Ratio
Rationale: Height has a true zero and meaningful ratios (e.g., someone can be twice as tall).
7. Level of Measurement: Zip Code
Q: What is the level of measurement for zip codes?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: a. Nominal
Rationale: Zip codes are identifiers and do not indicate quantity or order.
8. Level of Measurement: Judging (1st, 2nd)
Q: What is the level of measurement for judging results (1st, 2nd, etc.)?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: b. Ordinal
Rationale: Rankings have order but the intervals between them are not necessarily equal.
9. Level of Measurement: Gender
Q: What is the level of measurement for gender?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
, Correct Answer: a. Nominal
Rationale: Gender is a categorical variable with no inherent order.
10. Level of Measurement: Street Address
Q: What is the level of measurement for a street address?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: a. Nominal
Rationale: Street addresses identify locations, not quantities or orders.
11. Binomial Experiment
Q: Which of the following is not a property of a binomial experiment?
a. It has a fixed number of trials
b. All trials are independent
c. Binomial experiments result in a continuous probability distribution
d. Each trial has only two outcomes
e. All of the above describe a binomial distribution
Correct Answer: c. Binomial experiments result in a continuous probability distribution
Rationale: Binomial distributions are discrete, not continuous.
12. Comparing Two Normal Distributions
Q: Compare the graph of a standard normal distribution (mean = 0, SD = 1) to one with mean =
0 and SD = 0.5.
a. One would be wider
b. One would be narrower
c. There would be horizontal displacement
d. Both a and b
e. Both b and c
EXAM QUESTIONS NEW VERSION LATEST
UPDATE 2025-2026 WITH ACCURATE
ANSWERS GUARANTEED PASS BEST
STUDYING MATERIAL WITH 100+
QUESTIONS
Q: A researcher wants to compare student loan debt for students who attend four-year public
universities with those who attend four-year private universities. She plans to take a random
sample of 100 recent graduates of each type. What type of random sampling is this?
a. Simple random sample
b. Cluster sample
c. Stratified sample
d. Systematic sample
Correct Answer: c. Stratified sample
Rationale: The population is divided into two subgroups (public and private university
graduates), and random samples are taken from each. This is characteristic of stratified
sampling.
2. Level of Measurement: Temperature (°F)
Q: What is the level of measurement for temperature in degrees Fahrenheit?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: c. Interval
Rationale: Interval data have meaningful differences between values but no true zero.
Temperature in °F fits this, as 0°F does not mean “no temperature.”
,3. Level of Measurement: Sports Jersey Number
Q: What is the level of measurement for a sports jersey number?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: a. Nominal
Rationale: Jersey numbers are used for identification and do not have a quantitative or ordered
meaning.
4. Level of Measurement: Letter Grade
Q: What is the level of measurement for letter grades (A, B, C, etc.)?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: b. Ordinal
Rationale: Letter grades imply order but not consistent intervals between them.
5. Level of Measurement: Stat Score
Q: What is the level of measurement for a standardized test score?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: c. Interval
Rationale: Standardized scores have meaningful differences but lack a true zero point.
6. Level of Measurement: Height
Q: What is the level of measurement for height?
,a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: d. Ratio
Rationale: Height has a true zero and meaningful ratios (e.g., someone can be twice as tall).
7. Level of Measurement: Zip Code
Q: What is the level of measurement for zip codes?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: a. Nominal
Rationale: Zip codes are identifiers and do not indicate quantity or order.
8. Level of Measurement: Judging (1st, 2nd)
Q: What is the level of measurement for judging results (1st, 2nd, etc.)?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: b. Ordinal
Rationale: Rankings have order but the intervals between them are not necessarily equal.
9. Level of Measurement: Gender
Q: What is the level of measurement for gender?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
, Correct Answer: a. Nominal
Rationale: Gender is a categorical variable with no inherent order.
10. Level of Measurement: Street Address
Q: What is the level of measurement for a street address?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
Correct Answer: a. Nominal
Rationale: Street addresses identify locations, not quantities or orders.
11. Binomial Experiment
Q: Which of the following is not a property of a binomial experiment?
a. It has a fixed number of trials
b. All trials are independent
c. Binomial experiments result in a continuous probability distribution
d. Each trial has only two outcomes
e. All of the above describe a binomial distribution
Correct Answer: c. Binomial experiments result in a continuous probability distribution
Rationale: Binomial distributions are discrete, not continuous.
12. Comparing Two Normal Distributions
Q: Compare the graph of a standard normal distribution (mean = 0, SD = 1) to one with mean =
0 and SD = 0.5.
a. One would be wider
b. One would be narrower
c. There would be horizontal displacement
d. Both a and b
e. Both b and c
