The complement of the event 'at least one head' in two coin tosses is: MCQ with Answer and Explanation
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Question #1
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Assertion (A): Fisher's ideal index satisfies both time reversal and factor reversal tests. Reason (R): Fisher's index is the geometric mean of Laspeyres and Paasche indices. Choose the correct option:
Correct Answer: Option D
Explanation:
Fisher's index indeed satisfies both tests, and the formula (geometric mean) is the reason it meets these tests.
Fisher's index indeed satisfies both tests, and the formula (geometric mean) is the reason it meets these tests.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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In Bayes' theorem, P(A|B) is called:
Correct Answer: Option D
Explanation:
P(A|B) updates prior using evidence, giving posterior.
P(A|B) updates prior using evidence, giving posterior.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The weighted harmonic mean is used to average:
Correct Answer: Option A
Explanation:
Weighted harmonic mean is appropriate when the weights correspond to the denominator of the ratio.
Weighted harmonic mean is appropriate when the weights correspond to the denominator of the ratio.
This question belongs to:
Accountancy and Statistics
Statistics
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