Bayes' theorem is expressed as P(A|B) = [P(B|A) × P(A)] / P(B). Here, P(A) is called the: MCQ with Answer and Explanation

Bayes' theorem is expressed as P(A|B) = [P(B|A) × P(A)] / P(B). Here, P(A) is called the:
A. Likelihood
B. Posterior probability
C. Prior probability
D. Marginal probability
Answer: Option C
Solution (By JKSSB Mock Tests)
In Bayesian inference, P(A) is the prior probability, representing initial belief about hypothesis A before observing evidence B; P(A|B) is the updated posterior probability.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statistics Questions

Question #1
Which of the following is NOT a component of population change?
A. Fertility
B. Migration
C. Mortality
D. Inflation

Correct Answer: Option D


Explanation:
Population change results from births, deaths, and migration; inflation is an economic concept.

This question belongs to: Accountancy and Statistics Statistics
Question #2
A good questionnaire should avoid leading questions. A leading question is one that:
A. Is open-ended
B. Is too long
C. Suggests a particular answer
D. Uses technical jargon

Correct Answer: Option C


Explanation:
A leading question biases the respondent towards a specific response, undermining objectivity.

This question belongs to: Accountancy and Statistics Statistics
Question #3
Which of the following statements about crude birth rate (CBR) is true?
A. CBR is a refined measure of fertility.
B. CBR is affected by the age structure of the population.
C. CBR includes only male births.
D. CBR = (Total births / Total female population) × 1000

Correct Answer: Option B


Explanation:
CBR uses total population, so age composition influences it.

This question belongs to: Accountancy and Statistics Statistics