The harmonic mean of 1 and 1 is: MCQ with Answer and Explanation

Question

Share Report Error

The harmonic mean of 1 and 1 is:

A. 2

B. 1

C. Undefined

D. 0.5

Answer: Option B

Solution (By JKSSB Mock Tests)

HM = 2 / (1+1) = 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

If two attributes A and B have a coefficient of association Q = -0.8, this indicates:

A. Weak positive association

B. Strong positive association

C. Strong negative association

D. No association

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option C

Explanation:
Yule's Q ranges from -1 to +1; values near -1 indicate strong negative association (presence of one attribute tends to coincide with absence of the other), near +1 strong positive association.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Share Report

If (AB) = 0, the two attributes are:

A. Perfectly correlated

B. Completely associated positively

C. Completely disassociated

D. Independent

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option C

Explanation:
(AB)=0 means no unit possesses both A and B, indicating perfect negative association.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Share Report

If two events are complementary, then:

A. They are mutually exclusive and exhaustive

B. P(A) = P(B)

C. They are independent

D. P(A∩B) = P(A)P(B)

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option A

Explanation:
Complementary events partition the sample space.

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs