A coin is tossed three times. What is the probability of getting exactly two heads? MCQ with Answer and Explanation

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A coin is tossed three times. What is the probability of getting exactly two heads?

A. 1/2

B. 5/8

C. 3/8

D. 1/8

Answer: Option C

Solution (By JKExamLibrary)

Sample space has 8 outcomes. Favorable (HHT, HTH, THH) = 3. Probability = 3/8.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

Which of the following statements about Laspeyres and Paasche indices is correct?

A. Laspeyres index tends to understate price increase, Paasche overstates.

B. Paasche index satisfies the time reversal test.

C. Fisher's index is the geometric mean of Laspeyres and Paasche.

D. Laspeyres uses current period quantities, Paasche uses base period quantities.

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Correct Answer: Option C

Explanation:
Fisher = √(L×P). L uses base quantities, P uses current quantities. L overstates, P understates. Neither L nor P satisfies time reversal.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

Laspeyres price index uses weights of:

A. Base period quantities

B. Current period quantities

C. Average of base and current quantities

D. Fixed arbitrary weights

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Correct Answer: Option A

Explanation:
Laspeyres index is Σ(p₁q₀)/Σ(p₀q₀) × 100, using base period quantities as weights.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

The Paasche index is weighted by:

A. Base period prices

B. Base period quantities

C. Fixed weights

D. Current period quantities

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Correct Answer: Option D

Explanation:
Paasche price index uses current quantities as weights.

This question belongs to: Accountancy and Statistics Statistics

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