The arrangement of data into classes based on common characteristics is: MCQ with Answer and Explanation

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The arrangement of data into classes based on common characteristics is:

A. Classification

B. Tabulation

C. Presentation

D. Analysis

Answer: Option A

Solution (By JKSSB Mock Tests)

Classification is the process of grouping data into categories.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

Bayes' theorem is particularly useful in:

A. Constructing frequency distributions

B. Calculating simple probabilities

C. Determining sample size

D. Updating beliefs with new evidence in diagnostic testing or machine learning

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Correct Answer: Option D

Explanation:
Bayes' theorem provides a formal framework for revising prior probabilities based on observed data, crucial in medical testing (e.g., disease probability given positive test) and Bayesian statistics.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Which of the following is a feature of a good census?

A. Simultaneity

B. Universal coverage within a defined territory

C. Periodicity

D. All of the above

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Correct Answer: Option D

Explanation:
A modern census requires universal coverage, simultaneous enumeration, and regular periodicity (usually 10 years).

This question belongs to: Accountancy and Statistics Statistics

Question #3

Gross Reproduction Rate (GRR) differs from TFR by:

A. Expressing rate per 100 women instead of 1,000

B. Including only female births in the numerator

C. Using a different age range for women

D. Adjusting for infant mortality

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Correct Answer: Option B

Explanation:
GRR = Σ (ASFR for female births only) × 5 (for 5-year age groups), measuring the average number of daughters a woman would have, focusing on female offspring for generational replacement analysis.

This question belongs to: Accountancy and Statistics Statistics

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