Harmonic mean is used to average speeds when: MCQ with Answer and Explanation

Question

Share Report Error

Harmonic mean is used to average speeds when:

A. Data is qualitative

B. Speeds are constant

C. Distances traveled are equal

D. Times traveled are equal

Answer: Option C

Solution (By JKSSB Mock Tests)

For equal distances, average speed = total distance / total time = harmonic mean of speeds; arithmetic mean would overestimate if speeds vary.

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

The symbol (α) in attributes represents:

A. Presence of all attributes

B. Presence of B

C. Absence of attribute A

D. Possession of attribute A

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option C

Explanation:
α (alpha) is the negation of A, meaning not possessing A.

This question belongs to: Accountancy and Statistics Statistics

Question #2

The denominator of Crude Death Rate is:

A. Number of elderly

B. Mid-year total population

C. Number of women

D. Number of live births

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option B

Explanation:
CDR = (Total deaths / Mid-year population) × 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #3

If P(A|B) = P(A), then events A and B are:

A. Mutually exclusive

B. Complementary

C. Independent

D. Exhaustive

View Answer & Solution Discuss

Get Complete Subject PDF for Accountancy and Statistics

Correct Answer: Option C

Explanation:
Independence means P(A|B) = P(A).

This question belongs to: Accountancy and Statistics Statistics

Explore All Statistics MCQs