The population of India in 2023 is estimated to be: MCQ with Answer and Explanation
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Question #1
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Which of the following about Census 2011 is incorrect?
Correct Answer: Option B
Explanation:
Sex ratio was 943, not 940.
Sex ratio was 943, not 940.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Three machines produce 60%, 30%, 10% of items with defect rates 2%, 3%, 4%. If an item is defective, probability it came from the third machine is:
Correct Answer: Option C
Explanation:
P(D) = 0.6×0.02 + 0.3×0.03 + 0.1×0.04 = 0.012+0.009+0.004=0.025. P(M3|D) = 0.004/0.025 = 0.16.
P(D) = 0.6×0.02 + 0.3×0.03 + 0.1×0.04 = 0.012+0.009+0.004=0.025. P(M3|D) = 0.004/0.025 = 0.16.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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A bag contains 5 white and 3 black balls. If one ball is drawn, the probability it is black is:
Correct Answer: Option D
Explanation:
Total balls = 8. Favorable outcomes (black) = 3. Probability = 3/8.
Total balls = 8. Favorable outcomes (black) = 3. Probability = 3/8.
This question belongs to:
Accountancy and Statistics
Statistics
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