If a dataset has a standard deviation of zero, then: MCQ with Answer and Explanation

Question Report Error

If a dataset has a standard deviation of zero, then:

A. Median is zero

B. Data are missing

C. Mean is zero

D. All values are equal

Answer: Option D

Solution (By JKExamLibrary)

No variation implies all values are identical.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

The first synchronous census of India was held in the year:

A. 1901

B. 1872

C. 1881

D. 1947

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Correct Answer: Option C

Explanation:
While a partial census occurred in 1872, the first complete and synchronous census of India took place in 1881.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

Which of the following is true about the mode?

A. Always less than mean

B. Always equal to median

C. Always unique

D. Can be more than one

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Correct Answer: Option D

Explanation:
A distribution can be bimodal or multimodal.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

A questionnaire is said to be structured if:

A. It allows the interviewer to change questions

B. It is very long

C. It has a fixed set of questions with predetermined response options

D. It contains only open-ended questions

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Correct Answer: Option C

Explanation:
Structured questionnaires use standard questions and answer choices, facilitating easy coding.

This question belongs to: Accountancy and Statistics Statistics

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