If P(A)=0.2 and P(B)=0.5, and A, B are independent, then P(A∩B) is: MCQ with Answer and Explanation

Question

Share Report Error

If P(A)=0.2 and P(B)=0.5, and A, B are independent, then P(A∩B) is:

A. 0.3

B. 0.7

C. 0.1

D. 0.6

Answer: Option C

Solution (By JKSSB Mock Tests)

0.2×0.5 = 0.1.

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

The geometric mean of two numbers a and b is 6, and their arithmetic mean is 10. The numbers are:

A. 4 and 16

B. 2 and 18

C. 3 and 17

D. 8 and 12

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option B

Explanation:
a + b = 20 and ab = 36. Solving gives 2 and 18 (2 + 18 = 20, 2 × 18 = 36).

This question belongs to: Accountancy and Statistics Statistics

Question #2

Share Report

Assertion (A): Harmonic mean is greater than geometric mean for positive numbers. Reason (R): For positive numbers, AM ≥ GM ≥ HM.

A. A is true, R is false

B. Both A and R true, but R is not correct explanation

C. Both A and R true, and R is correct explanation

D. A is false, R is true

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
The correct inequality is AM ≥ GM ≥ HM, so HM ≤ GM, thus HM is not greater. So assertion false, reason true.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Share Report

For given data Σp₁q₀=480, Σp₀q₀=400, Σp₁q₁=600, Σp₀q₁=500. Fisher's index is:

A. 121.0

B. 122.5

C. 124.9

D. 120.0

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
Laspeyres = 480/400×100=120; Paasche = 600/500×100=120; Fisher = √(120×120) = 120.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs