For inclusive class intervals like 10-19, 20-29, the true class boundaries are obtained by: MCQ with Answer and Explanation
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Question #1
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Two events A and B are called complementary if:
Correct Answer: Option B
Explanation:
Complementary events partition the sample space; one is the complement of the other.
Complementary events partition the sample space; one is the complement of the other.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Which of the following index numbers uses the weighted arithmetic mean of price relatives with base year value weights?
Correct Answer: Option D
Explanation:
Laspeyres = Σ (p₁/p₀) × w₀, where w₀ = p₀q₀ / Σp₀q₀. So it is a weighted arithmetic mean of relatives.
Laspeyres = Σ (p₁/p₀) × w₀, where w₀ = p₀q₀ / Σp₀q₀. So it is a weighted arithmetic mean of relatives.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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A box has 2 red, 3 blue, 5 green balls. Probability of drawing a green ball is:
Correct Answer: Option D
Explanation:
Total balls = 10, green = 5, probability = 5/10 = 1/2. But option B says 5/10, which is the same. So B is correct.
Total balls = 10, green = 5, probability = 5/10 = 1/2. But option B says 5/10, which is the same. So B is correct.
This question belongs to:
Accountancy and Statistics
Statistics
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