Life expectancy at birth is an indicator of: MCQ with Answer and Explanation
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Question #1
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Assertion (A): Direct personal investigation is always the most suitable method for data collection. Reason (R): It provides original and highly accurate data.
Correct Answer: Option D
Explanation:
Direct personal investigation is not always suitable, especially for very large populations, although it does yield highly accurate data.
Direct personal investigation is not always suitable, especially for very large populations, although it does yield highly accurate data.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The middle value in an ordered array is called the:
Correct Answer: Option C
Explanation:
Median is the central value when data are sorted.
Median is the central value when data are sorted.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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For a positive dataset, if the harmonic mean is equal to the arithmetic mean, what can be concluded?
Correct Answer: Option C
Explanation:
For positive numbers, AM = GM = HM only when all values are identical.
For positive numbers, AM = GM = HM only when all values are identical.
This question belongs to:
Accountancy and Statistics
Statistics
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