The cumulative frequency curve is also known as: MCQ with Answer and Explanation

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The cumulative frequency curve is also known as:

A. Frequency polygon

B. Histogram

C. Bar chart

D. Ogive

Answer: Option D

Solution (By JKSSB Mock Tests)

An ogive is a graph of cumulative frequencies plotted against the upper class boundaries (less than type) or lower boundaries (more than type).

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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The maternal mortality ratio in India declined from 130 (2014-16) to 113 (2016-18) per 100,000 live births. This represents a decline of about:

A. 20%

B. 13%

C. 25%

D. 17%

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Correct Answer: Option B

Explanation:
Decline = (130-113)/130 × 100 ≈ 13.08%.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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WPI covers:

A. Goods only (primary, fuel, manufactured)

B. Services

C. Only agricultural goods

D. All goods and services

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Correct Answer: Option A

Explanation:
WPI tracks price movements of goods at the wholesale level, excluding services.

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Question #3

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In Bayes' theorem, the probability P(E_i|A) is called:

A. Prior probability

B. Marginal probability

C. Likelihood

D. Posterior probability

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Correct Answer: Option D

Explanation:
The updated probability after observing the evidence is the posterior probability.

This question belongs to: Accountancy and Statistics Statistics

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