An ogive is a graph of: MCQ with Answer and Explanation

Question

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An ogive is a graph of:

A. Frequency vs class midpoints

B. Cumulative frequency against upper class boundaries

C. Frequency against lower limits

D. Cumulative frequency against lower class boundaries

Answer: Option B

Solution (By JKSSB Mock Tests)

A 'less than' ogive plots cumulative frequency against the upper class boundaries.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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The Net Reproduction Rate (NRR) of a population is 0.9. This indicates that:

A. Population will eventually decline

B. Mortality is zero

C. Population growth is high

D. Population is replacing itself

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Correct Answer: Option A

Explanation:
NRR < 1 means each generation is not fully replacing itself, leading to long-term decline.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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If P(A) = 0.4, P(B) = 0.5, and A and B are independent events, what is P(A ∪ B)?

A. 0.7

B. 0.2

C. 0.9

D. 0.1

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Correct Answer: Option A

Explanation:
For independent events, P(A ∩ B) = 0.4 × 0.5 = 0.2. Using the addition theorem: P(A ∪ B) = 0.4 + 0.5 - 0.2 = 0.7.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Which question type is MOST appropriate for collecting sensitive information like income in a survey?

A. Categorical ranges (e.g., ₹0-10k, ₹10k-25k)

B. Direct question with exact amount

C. Open-ended question

D. Forced-choice yes/no

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Correct Answer: Option A

Explanation:
Income ranges reduce respondent discomfort and non-response by avoiding precise disclosure while still providing usable data for analysis, balancing privacy and research needs.

This question belongs to: Accountancy and Statistics Statistics

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