The number of observations falling in a particular class is called: MCQ with Answer and Explanation

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The number of observations falling in a particular class is called:

A. Class frequency

B. Cumulative frequency

C. Class mark

D. Relative frequency

Answer: Option A

Solution (By JKSSB Mock Tests)

Class frequency is the count of data points within a class interval.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

If Q = -1, attributes exhibit:

A. Perfect negative association

B. No relationship

C. Perfect positive association

D. Independence

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Correct Answer: Option A

Explanation:
Q = -1 when ad=0, i.e., complete negative association.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Fisher's ideal index satisfies the factor reversal test because:

A. It is the arithmetic mean of Laspeyres and Paasche

B. It ignores quantity changes

C. Its price and quantity index product equals the value index

D. It uses base period weights

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Correct Answer: Option C

Explanation:
Fisher's index is designed so that (Fisher price index) × (Fisher quantity index) = Σp₁q₁/Σp₀q₀ (value index), fulfilling the factor reversal test for consistency between price and quantity measures.

This question belongs to: Accountancy and Statistics Statistics

Question #3

In a frequency distribution, the cumulative frequency of the last class is equal to:

A. Class width

B. Total frequency N

C. Zero

D. Number of classes

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Correct Answer: Option B

Explanation:
Cumulative frequency accumulates all frequencies; the last cumulative frequency equals total frequency.

This question belongs to: Accountancy and Statistics Statistics

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