The frequency of a class which specifies the absence of all attributes (e.g., (αβγ)) is a: MCQ with Answer and Explanation

The frequency of a class which specifies the absence of all attributes (e.g., (αβγ)) is a:

A. Positive class frequency

B. Negative class frequency

C. Zero order frequency

D. Contrary class frequency

Answer: Option B

Solution (By JKExamLibrary)

Classes represented by Greek letters denote the absence of attributes, hence their frequencies are negative class frequencies.

This question belongs to: Accountancy and Statistics Statistics

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Which type of classification is used when data is grouped according to time periods such as years, months, or quarters?

A. Qualitative classification

B. Spatial classification

C. Chronological classification

D. Quantitative classification

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Correct Answer: Option C

Explanation:
Chronological classification organizes data based on time sequences, enabling analysis of trends, patterns, and changes over specific periods like years or months.

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Question #2 Report Error

If P(A) = 0.2 and P(B) = 0.3, and A, B are mutually exclusive, P(A∪B) is:

A. 0.1

B. 0.8

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Correct Answer: Option D

Explanation:
For mutually exclusive events, P(A∪B) = P(A) + P(B) = 0.5.

This question belongs to: Accountancy and Statistics Statistics

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The algebraic sum of deviations of observations from the arithmetic mean is:

A. Always positive

B. Always negative

C. Always zero

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Correct Answer: Option C

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Σ(x - x̄) = 0 is a fundamental property of the arithmetic mean.

This question belongs to: Accountancy and Statistics Statistics

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