Which coefficient is commonly used to measure the association of attributes? MCQ with Answer and Explanation
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Question #1
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Bayes' theorem is used to find:
Correct Answer: Option C
Explanation:
Bayes' theorem updates prior probabilities with new evidence to give posterior probabilities.
Bayes' theorem updates prior probabilities with new evidence to give posterior probabilities.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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A random variable X takes values 0,1,2 with probabilities 0.3,0.5,0.2. The expected value E(X) is:
Correct Answer: Option D
Explanation:
E(X) = 0×0.3 + 1×0.5 + 2×0.2 = 0 + 0.5 + 0.4 = 0.9.
E(X) = 0×0.3 + 1×0.5 + 2×0.2 = 0 + 0.5 + 0.4 = 0.9.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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For a moderately skewed distribution, the difference between mean and mode is approximately:
Correct Answer: Option C
Explanation:
From empirical relation: Mean - Mode ≈ 3(Mean - Median).
From empirical relation: Mean - Mode ≈ 3(Mean - Median).
This question belongs to:
Accountancy and Statistics
Statistics
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