If the events A and B are mutually exclusive and P(A)=0.4, P(B)=0.5, then P(A∪B) is: MCQ with Answer and Explanation

Question

Share Report Error

If the events A and B are mutually exclusive and P(A)=0.4, P(B)=0.5, then P(A∪B) is:

A. 0.9

B. 0.7

C. 0.1

D. 0.2

Answer: Option A

Solution (By JKSSB Mock Tests)

0.4+0.5=0.9.

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

In the classification of data, 'chronological classification' refers to:

A. Grouping by attributes

B. Grouping by geographical area

C. Grouping by time

D. Grouping by magnitude

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option C

Explanation:
Chronological means time-based.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Share Report

The measure 'Child-Woman Ratio' is a:

A. Measure of mortality

B. Direct measure of fertility

C. Measure of migration

D. Indirect measure of fertility

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
It relates children 0-4 to women 15-49, approximating fertility.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Share Report

The geometric mean of 1, 3, 9 is:

A. 13

B. 4.33

C. 3.3

D. 3

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option D

Explanation:
(1×3×9)^(1/3) = 27^(1/3) = 3.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs