Prediction Survival Analysis MCQ Questions with Answers (Latest 2026)

Q1. Which option best describes survival analysis?

A. Pure clustering. B. Pure classification. C. Pure regression only. D. Time-to-event modeling with censoring.

Select an answer to check.

Answer: Time-to-event modeling with censoring.

Here, Time-to-event modeling with censoring. is the right choice. Used in medicine, churn, reliability. It aligns directly with what the question asks about which option best describes survival analysis. A quick elimination of partially true options helps confirm it.

Q2. What is the primary purpose of survival analysis?

A. Pure clustering. B. Pure regression only. C. Time-to-event modeling with censoring. D. Pure classification.

Select an answer to check.

Answer: Time-to-event modeling with censoring.

In this case, Time-to-event modeling with censoring. is correct. Used in medicine, churn, reliability. It aligns directly with what the question asks about what is the primary purpose of survival analysis. A quick elimination of partially true options helps confirm it.

Q3. Which statement about survival analysis is most accurate?

A. Time-to-event modeling with censoring. B. Pure clustering. C. Pure classification. D. Pure regression only.

Select an answer to check.

Answer: Time-to-event modeling with censoring.

The best option here is Time-to-event modeling with censoring.. Used in medicine, churn, reliability. It aligns directly with what the question asks about which statement about survival analysis is most accurate. A quick elimination of partially true options helps confirm it.

Q4. How is survival analysis best characterized?

A. Pure regression only. B. Pure clustering. C. Pure classification. D. Time-to-event modeling with censoring.

Select an answer to check.

Answer: Time-to-event modeling with censoring.

For this question, Time-to-event modeling with censoring. is correct. Used in medicine, churn, reliability. It aligns directly with what the question asks about how is survival analysis best characterized. A quick elimination of partially true options helps confirm it.

Q5. Which option best describes censored data?

A. Always observed. B. Missing covariates. C. Pure outliers. D. Event time partially observed (e.g., still alive).

Select an answer to check.

Answer: Event time partially observed (e.g., still alive).

Event time partially observed (e.g., still alive). is the correct answer here. Right-censoring most common. It aligns directly with what the question asks about which option best describes censored data. A quick elimination of partially true options helps confirm it.

Q6. What is the primary purpose of censored data?

A. Missing covariates. B. Always observed. C. Pure outliers. D. Event time partially observed (e.g., still alive).

Select an answer to check.

Answer: Event time partially observed (e.g., still alive).

Here, Event time partially observed (e.g., still alive). is the right choice. Right-censoring most common. This matches the core idea being tested around what is the primary purpose of censored data. A quick elimination of partially true options helps confirm it.

Q7. Which statement about censored data is most accurate?

A. Always observed. B. Pure outliers. C. Missing covariates. D. Event time partially observed (e.g., still alive).

Select an answer to check.

Answer: Event time partially observed (e.g., still alive).

In this case, Event time partially observed (e.g., still alive). is correct. Right-censoring most common. This matches the core idea being tested around which statement about censored data is most accurate. A quick elimination of partially true options helps confirm it.

Q8. How is censored data best characterized?

A. Always observed. B. Event time partially observed (e.g., still alive). C. Pure outliers. D. Missing covariates.

Select an answer to check.

Answer: Event time partially observed (e.g., still alive).

The best option here is Event time partially observed (e.g., still alive).. Right-censoring most common. This matches the core idea being tested around how is censored data best characterized. A quick elimination of partially true options helps confirm it.

Q9. Which option best describes right censoring?

A. Interval censoring. B. Event hasn't happened by end of study. C. Left censoring. D. No censoring.

Select an answer to check.

Answer: Event hasn't happened by end of study.

For this question, Event hasn't happened by end of study. is correct. Most common. This matches the core idea being tested around which option best describes right censoring. A quick elimination of partially true options helps confirm it.

Q10. What is the primary purpose of right censoring?

A. Event hasn't happened by end of study. B. No censoring. C. Interval censoring. D. Left censoring.

Select an answer to check.

Answer: Event hasn't happened by end of study.

Event hasn't happened by end of study. is the correct answer here. Most common. This matches the core idea being tested around what is the primary purpose of right censoring. A quick elimination of partially true options helps confirm it.

Q11. Which statement about right censoring is most accurate?

A. No censoring. B. Event hasn't happened by end of study. C. Interval censoring. D. Left censoring.

Select an answer to check.

Answer: Event hasn't happened by end of study.

Here, Event hasn't happened by end of study. is the right choice. Most common. That is exactly the concept behind which statement about right censoring is most accurate in this context. A quick elimination of partially true options helps confirm it.

Q12. How is right censoring best characterized?

A. No censoring. B. Left censoring. C. Event hasn't happened by end of study. D. Interval censoring.

Select an answer to check.

Answer: Event hasn't happened by end of study.

In this case, Event hasn't happened by end of study. is correct. Most common. That is exactly the concept behind how is right censoring best characterized in this context. A quick elimination of partially true options helps confirm it.

Q13. Which option best describes left censoring?

A. Right censoring. B. No censoring. C. Interval censoring. D. Event happened before observation started.

Select an answer to check.

Answer: Event happened before observation started.

The best option here is Event happened before observation started.. Less common; trickier. That is exactly the concept behind which option best describes left censoring in this context. A quick elimination of partially true options helps confirm it.

Q14. What is the primary purpose of left censoring?

A. No censoring. B. Right censoring. C. Event happened before observation started. D. Interval censoring.

Select an answer to check.

Answer: Event happened before observation started.

For this question, Event happened before observation started. is correct. Less common; trickier. That is exactly the concept behind what is the primary purpose of left censoring in this context. A quick elimination of partially true options helps confirm it.

Q15. Which statement about left censoring is most accurate?

A. No censoring. B. Event happened before observation started. C. Interval censoring. D. Right censoring.

Select an answer to check.

Answer: Event happened before observation started.

Event happened before observation started. is the correct answer here. Less common; trickier. That is exactly the concept behind which statement about left censoring is most accurate in this context. A quick elimination of partially true options helps confirm it.

Q16. How is left censoring best characterized?

A. Interval censoring. B. Event happened before observation started. C. Right censoring. D. No censoring.

Select an answer to check.

Answer: Event happened before observation started.

Here, Event happened before observation started. is the right choice. Less common; trickier. It fits the requirement in the prompt about how is left censoring best characterized. A quick elimination of partially true options helps confirm it.

Q17. Which option best describes interval censoring?

A. Right censoring. B. Left censoring. C. No censoring. D. Event occurred within an interval.

Select an answer to check.

Answer: Event occurred within an interval.

In this case, Event occurred within an interval. is correct. Requires special methods. It fits the requirement in the prompt about which option best describes interval censoring. A quick elimination of partially true options helps confirm it.

Q18. What is the primary purpose of interval censoring?

A. Event occurred within an interval. B. Left censoring. C. Right censoring. D. No censoring.

Select an answer to check.

Answer: Event occurred within an interval.

The best option here is Event occurred within an interval.. Requires special methods. It fits the requirement in the prompt about what is the primary purpose of interval censoring. A quick elimination of partially true options helps confirm it.

Q19. Which statement about interval censoring is most accurate?

A. Right censoring. B. Event occurred within an interval. C. Left censoring. D. No censoring.

Select an answer to check.

Answer: Event occurred within an interval.

For this question, Event occurred within an interval. is correct. Requires special methods. It fits the requirement in the prompt about which statement about interval censoring is most accurate. A quick elimination of partially true options helps confirm it.

Q20. How is interval censoring best characterized?

A. Right censoring. B. Event occurred within an interval. C. Left censoring. D. No censoring.

Select an answer to check.

Answer: Event occurred within an interval.

Event occurred within an interval. is the correct answer here. Requires special methods. It fits the requirement in the prompt about how is interval censoring best characterized. A quick elimination of partially true options helps confirm it.

Q21. Which option best describes the survival function S(t)?

A. P(T > t); probability of surviving past t. B. Cumulative distribution. C. Density function. D. Pure hazard.

Select an answer to check.

Answer: P(T > t); probability of surviving past t.

Here, P(T > t); probability of surviving past t. is the right choice. Decreases over time. This is the most accurate statement for which option best describes the survival function s(t). A quick elimination of partially true options helps confirm it.

Q22. What is the primary purpose of the survival function S(t)?

A. Pure hazard. B. Cumulative distribution. C. P(T > t); probability of surviving past t. D. Density function.

Select an answer to check.

Answer: P(T > t); probability of surviving past t.

In this case, P(T > t); probability of surviving past t. is correct. Decreases over time. This is the most accurate statement for what is the primary purpose of the survival. A quick elimination of partially true options helps confirm it.

Q23. Which statement about the survival function S(t) is most accurate?

A. Pure hazard. B. Cumulative distribution. C. Density function. D. P(T > t); probability of surviving past t.

Select an answer to check.

Answer: P(T > t); probability of surviving past t.

The best option here is P(T > t); probability of surviving past t.. Decreases over time. This is the most accurate statement for which statement about the survival function s(t) is. A quick elimination of partially true options helps confirm it.

Q24. How is the survival function S(t) best characterized?

A. Pure hazard. B. Density function. C. P(T > t); probability of surviving past t. D. Cumulative distribution.

Select an answer to check.

Answer: P(T > t); probability of surviving past t.

For this question, P(T > t); probability of surviving past t. is correct. Decreases over time. This is the most accurate statement for how is the survival function s(t) best characterized. A quick elimination of partially true options helps confirm it.

Q25. Which option best describes the hazard function h(t)?

A. Instantaneous failure rate at time t. B. Cumulative hazard. C. Pure density. D. Pure CDF.

Select an answer to check.

Answer: Instantaneous failure rate at time t.

Instantaneous failure rate at time t. is the correct answer here. Underlies many models. This is the most accurate statement for which option best describes the hazard function h(t). A quick elimination of partially true options helps confirm it.

Q26. What is the primary purpose of the hazard function h(t)?

A. Pure density. B. Pure CDF. C. Cumulative hazard. D. Instantaneous failure rate at time t.

Select an answer to check.

Answer: Instantaneous failure rate at time t.

Here, Instantaneous failure rate at time t. is the right choice. Underlies many models. It aligns directly with what the question asks about what is the primary purpose of the hazard. The other options are either incomplete or contextually incorrect.

Q27. Which statement about the hazard function h(t) is most accurate?

A. Instantaneous failure rate at time t. B. Pure CDF. C. Cumulative hazard. D. Pure density.

Select an answer to check.

Answer: Instantaneous failure rate at time t.

In this case, Instantaneous failure rate at time t. is correct. Underlies many models. It aligns directly with what the question asks about which statement about the hazard function h(t) is. The other options are either incomplete or contextually incorrect.

Q28. How is the hazard function h(t) best characterized?

A. Instantaneous failure rate at time t. B. Pure density. C. Cumulative hazard. D. Pure CDF.

Select an answer to check.

Answer: Instantaneous failure rate at time t.

The best option here is Instantaneous failure rate at time t.. Underlies many models. It aligns directly with what the question asks about how is the hazard function h(t) best characterized. The other options are either incomplete or contextually incorrect.

Q29. Which option best describes the cumulative hazard?

A. The survival function. B. The hazard function. C. Pure CDF. D. Integral of hazard up to t.

Select an answer to check.

Answer: Integral of hazard up to t.

For this question, Integral of hazard up to t. is correct. Used in Nelson-Aalen. It aligns directly with what the question asks about which option best describes the cumulative hazard. The other options are either incomplete or contextually incorrect.

Q30. What is the primary purpose of the cumulative hazard?

A. The hazard function. B. Integral of hazard up to t. C. Pure CDF. D. The survival function.

Select an answer to check.

Answer: Integral of hazard up to t.

Integral of hazard up to t. is the correct answer here. Used in Nelson-Aalen. It aligns directly with what the question asks about what is the primary purpose of the cumulative. The other options are either incomplete or contextually incorrect.

Q31. Which statement about the cumulative hazard is most accurate?

A. The survival function. B. Integral of hazard up to t. C. Pure CDF. D. The hazard function.

Select an answer to check.

Answer: Integral of hazard up to t.

Here, Integral of hazard up to t. is the right choice. Used in Nelson-Aalen. This matches the core idea being tested around which statement about the cumulative hazard is most. The other options are either incomplete or contextually incorrect.

Q32. How is the cumulative hazard best characterized?

A. The survival function. B. The hazard function. C. Pure CDF. D. Integral of hazard up to t.

Select an answer to check.

Answer: Integral of hazard up to t.

In this case, Integral of hazard up to t. is correct. Used in Nelson-Aalen. This matches the core idea being tested around how is the cumulative hazard best characterized. The other options are either incomplete or contextually incorrect.

Q33. Which option best describes Kaplan-Meier estimator?

A. Cox PH model. B. Weibull AFT. C. Pure linear regression. D. Nonparametric estimate of survival function.

Select an answer to check.

Answer: Nonparametric estimate of survival function.

The best option here is Nonparametric estimate of survival function.. Commonly visualized as a step plot. This matches the core idea being tested around which option best describes kaplan-meier estimator. The other options are either incomplete or contextually incorrect.

Q34. What is the primary purpose of Kaplan-Meier estimator?

A. Cox PH model. B. Pure linear regression. C. Nonparametric estimate of survival function. D. Weibull AFT.

Select an answer to check.

Answer: Nonparametric estimate of survival function.

For this question, Nonparametric estimate of survival function. is correct. Commonly visualized as a step plot. This matches the core idea being tested around what is the primary purpose of kaplan-meier estimator. The other options are either incomplete or contextually incorrect.

Q35. Which statement about Kaplan-Meier estimator is most accurate?

A. Pure linear regression. B. Cox PH model. C. Weibull AFT. D. Nonparametric estimate of survival function.

Select an answer to check.

Answer: Nonparametric estimate of survival function.

Nonparametric estimate of survival function. is the correct answer here. Commonly visualized as a step plot. This matches the core idea being tested around which statement about kaplan-meier estimator is most accurate. The other options are either incomplete or contextually incorrect.

Q36. How is Kaplan-Meier estimator best characterized?

A. Weibull AFT. B. Pure linear regression. C. Cox PH model. D. Nonparametric estimate of survival function.

Select an answer to check.

Answer: Nonparametric estimate of survival function.

Here, Nonparametric estimate of survival function. is the right choice. Commonly visualized as a step plot. That is exactly the concept behind how is kaplan-meier estimator best characterized in this context. The other options are either incomplete or contextually incorrect.

Q37. Which option best describes Cox proportional hazards?

A. Pure logistic regression. B. Semi-parametric hazard model. C. Fully parametric Weibull only. D. Pure linear regression.

Select an answer to check.

Answer: Semi-parametric hazard model.

In this case, Semi-parametric hazard model. is correct. Hazard ratio interpretation. That is exactly the concept behind which option best describes cox proportional hazards in this context. The other options are either incomplete or contextually incorrect.

Q38. What is the primary purpose of Cox proportional hazards?

A. Semi-parametric hazard model. B. Pure linear regression. C. Pure logistic regression. D. Fully parametric Weibull only.

Select an answer to check.

Answer: Semi-parametric hazard model.

The best option here is Semi-parametric hazard model.. Hazard ratio interpretation. That is exactly the concept behind what is the primary purpose of cox proportional in this context. The other options are either incomplete or contextually incorrect.

Q39. Which statement about Cox proportional hazards is most accurate?

A. Fully parametric Weibull only. B. Pure logistic regression. C. Semi-parametric hazard model. D. Pure linear regression.

Select an answer to check.

Answer: Semi-parametric hazard model.

For this question, Semi-parametric hazard model. is correct. Hazard ratio interpretation. That is exactly the concept behind which statement about cox proportional hazards is most in this context. The other options are either incomplete or contextually incorrect.

Q40. How is Cox proportional hazards best characterized?

A. Pure logistic regression. B. Fully parametric Weibull only. C. Pure linear regression. D. Semi-parametric hazard model.

Select an answer to check.

Answer: Semi-parametric hazard model.

Semi-parametric hazard model. is the correct answer here. Hazard ratio interpretation. That is exactly the concept behind how is cox proportional hazards best characterized in this context. The other options are either incomplete or contextually incorrect.

Q41. Which option best describes the proportional hazards assumption?

A. Pure linearity assumption. B. Hazards equal across groups. C. No covariates effect. D. Hazards ratios constant in time.

Select an answer to check.

Answer: Hazards ratios constant in time.

Here, Hazards ratios constant in time. is the right choice. Violations require alternatives. It fits the requirement in the prompt about which option best describes the proportional hazards assumption. The other options are either incomplete or contextually incorrect.

Q42. What is the primary purpose of the proportional hazards assumption?

A. Hazards ratios constant in time. B. Pure linearity assumption. C. Hazards equal across groups. D. No covariates effect.

Select an answer to check.

Answer: Hazards ratios constant in time.

In this case, Hazards ratios constant in time. is correct. Violations require alternatives. It fits the requirement in the prompt about what is the primary purpose of the proportional. The other options are either incomplete or contextually incorrect.

Q43. Which statement about the proportional hazards assumption is most accurate?

A. Hazards equal across groups. B. Pure linearity assumption. C. No covariates effect. D. Hazards ratios constant in time.

Select an answer to check.

Answer: Hazards ratios constant in time.

The best option here is Hazards ratios constant in time.. Violations require alternatives. It fits the requirement in the prompt about which statement about the proportional hazards assumption is. The other options are either incomplete or contextually incorrect.

Q44. How is the proportional hazards assumption best characterized?

A. Pure linearity assumption. B. Hazards ratios constant in time. C. No covariates effect. D. Hazards equal across groups.

Select an answer to check.

Answer: Hazards ratios constant in time.

For this question, Hazards ratios constant in time. is correct. Violations require alternatives. It fits the requirement in the prompt about how is the proportional hazards assumption best characterized. The other options are either incomplete or contextually incorrect.

Q45. Which option best describes AFT models?

A. Pure logistic regression. B. Accelerated failure time; covariates scale time. C. Pure Kaplan-Meier. D. Cox PH model.

Select an answer to check.

Answer: Accelerated failure time; covariates scale time.

Accelerated failure time; covariates scale time. is the correct answer here. Weibull, log-logistic, log-normal. It fits the requirement in the prompt about which option best describes aft models. The other options are either incomplete or contextually incorrect.

Q46. What is the primary purpose of AFT models?

A. Pure Kaplan-Meier. B. Pure logistic regression. C. Cox PH model. D. Accelerated failure time; covariates scale time.

Select an answer to check.

Answer: Accelerated failure time; covariates scale time.

Here, Accelerated failure time; covariates scale time. is the right choice. Weibull, log-logistic, log-normal. This is the most accurate statement for what is the primary purpose of aft models. The other options are either incomplete or contextually incorrect.

Q47. Which statement about AFT models is most accurate?

A. Pure logistic regression. B. Pure Kaplan-Meier. C. Cox PH model. D. Accelerated failure time; covariates scale time.

Select an answer to check.

Answer: Accelerated failure time; covariates scale time.

In this case, Accelerated failure time; covariates scale time. is correct. Weibull, log-logistic, log-normal. This is the most accurate statement for which statement about aft models is most accurate. The other options are either incomplete or contextually incorrect.

Q48. How is AFT models best characterized?

A. Accelerated failure time; covariates scale time. B. Cox PH model. C. Pure Kaplan-Meier. D. Pure logistic regression.

Select an answer to check.

Answer: Accelerated failure time; covariates scale time.

The best option here is Accelerated failure time; covariates scale time.. Weibull, log-logistic, log-normal. This is the most accurate statement for how is aft models best characterized. The other options are either incomplete or contextually incorrect.

Q49. Which option best describes Weibull distribution?

A. Pure exponential only. B. Flexible parametric survival distribution. C. Pure uniform. D. Pure normal.

Select an answer to check.

Answer: Flexible parametric survival distribution.

For this question, Flexible parametric survival distribution. is correct. Hazard can increase/decrease. This is the most accurate statement for which option best describes weibull distribution. The other options are either incomplete or contextually incorrect.

Q50. What is the primary purpose of Weibull distribution?

A. Flexible parametric survival distribution. B. Pure exponential only. C. Pure uniform. D. Pure normal.

Select an answer to check.

Answer: Flexible parametric survival distribution.

Flexible parametric survival distribution. is the correct answer here. Hazard can increase/decrease. This is the most accurate statement for what is the primary purpose of weibull distribution. The other options are either incomplete or contextually incorrect.