Conditional probability P(A|B) is defined as: MCQ with Answer and Explanation

Question

Share Report Error

Conditional probability P(A|B) is defined as:

A. P(A∩B) / P(A)

B. P(A∩B) / P(B)

C. P(B) / P(A)

D. P(A) / P(B)

Answer: Option B

Solution (By JKSSB Mock Tests)

P(A|B) = P(A∩B) / P(B), provided P(B) > 0.

This question belongs to: Accountancy and Statistics Statistics

Request complete Subject PDF

Discuss this Question (0)

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

Practice More Statistics Questions

Question #1

Share Report

If TFR = 2.5 and proportion of female births is 0.48, GRR is:

A. 2.5

B. 1.3

C. 1.04

D. 1.2

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
GRR = 2.5 × 0.48 = 1.2 daughters per woman.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Share Report

The combined mean of two groups of sizes n₁ and n₂ with means x̄₁ and x̄₂ is given by:

A. (x̄₁ + x̄₂)/2

B. (x̄₁/x̄₂) × (n₁ + n₂)

C. (n₁x̄₁ + n₂x̄₂)/2

D. (n₁x̄₁ + n₂x̄₂)/(n₁ + n₂)

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
Combined mean is a weighted average.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Share Report

The CPI is used for:

A. Calculating agricultural output

B. Measuring industrial growth

C. Calculating national income

D. Determining dearness allowance and wage revision

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
CPI measures changes in the cost of living and is used to adjust wages and allowances.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs