The geometric mean is most appropriate for averaging: MCQ with Answer and Explanation
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Question #1
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Two dice are thrown simultaneously. The probability of getting a sum of 7 is:
Correct Answer: Option B
Explanation:
Favorable outcomes: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6. Total outcomes = 36. Prob = 6/36 = 1/6.
Favorable outcomes: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6. Total outcomes = 36. Prob = 6/36 = 1/6.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The base year of the Wholesale Price Index (WPI) 2011-12 series was revised in:
Correct Answer: Option A
Explanation:
The new WPI series with base 2011-12 was launched in 2017.
The new WPI series with base 2011-12 was launched in 2017.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The Harmonic Mean of 2 and 4 is:
Correct Answer: Option C
Explanation:
HM = 2ab / (a+b) = 2(2)(4) / (2+4) = 16/6 = 2.67.
HM = 2ab / (a+b) = 2(2)(4) / (2+4) = 16/6 = 2.67.
This question belongs to:
Accountancy and Statistics
Statistics
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