A frequency polygon is drawn by joining: MCQ with Answer and Explanation

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A frequency polygon is drawn by joining:

A. Cumulative frequencies

B. Class boundaries with frequencies

C. Class midpoints with frequencies

D. Class limits with frequencies

Answer: Option C

Solution (By JKSSB Mock Tests)

Points are plotted at class midpoints and connected by straight lines.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

For any two events A and B, P(A∪B) is:

A. Always ≤ P(A) + P(B)

B. Always ≥ P(A∩B)

C. Both A and B

D. Always ≤ 1

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Correct Answer: Option C

Explanation:
By the addition rule, P(A∪B) ≤ P(A)+P(B), and probability of any event is ≤1.

This question belongs to: Accountancy and Statistics Statistics

Question #2

The time reversal test checks whether an index number yields consistent results when:

A. The formula is applied to different data

B. Weights are changed

C. Units are changed

D. The base and current periods are reversed

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Correct Answer: Option D

Explanation:
The product of the forward and backward indices should be 1.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Which formula uses the arithmetic mean of base and current year quantities as weights?

A. Laspeyres

B. Dorbish-Bowley

C. Paasche

D. Marshall-Edgeworth

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Correct Answer: Option D

Explanation:
Marshall-Edgeworth uses the sum (or arithmetic average) of quantities from both years: w = (q0 + q1).

This question belongs to: Accountancy and Statistics Statistics

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