Bayes' theorem is a formula to calculate: MCQ with Answer and Explanation

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Bayes' theorem is a formula to calculate:

A. Union of events

B. Unconditional probability

C. Reverse conditional probability (posterior)

D. Intersection of independent events

Answer: Option C

Solution (By JKSSB Mock Tests)

Bayes' theorem calculates the posterior probability of a cause given the observed effect, effectively reversing the conditional direction.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

The Paasche index is weighted by:

A. Base period prices

B. Base period quantities

C. Fixed weights

D. Current period quantities

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Correct Answer: Option D

Explanation:
Paasche price index uses current quantities as weights.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Crude birth rate for a population of 200,000 with 4,000 live births in a year is:

A. 20 per 1000

B. 2 per 1000

C. 0.2 per 1000

D. 50 per 1000

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Correct Answer: Option A

Explanation:
CBR = (4000 / 200000) × 1000 = 0.02 × 1000 = 20 per 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #3

The curve obtained by joining the midpoints of histogram bars is:

A. Frequency polygon

B. Ogive

C. Bar chart

D. Pie chart

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Correct Answer: Option A

Explanation:
Frequency polygon connects class midpoints with lines.

This question belongs to: Accountancy and Statistics Statistics

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