WPI covers: MCQ with Answer and Explanation
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Question #1
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The Median of the dataset: 12, 15, 10, 18, 20 is:
Correct Answer: Option B
Explanation:
First, arrange in order: 10, 12, 15, 18, 20. The middle value (3rd item) is 15.
First, arrange in order: 10, 12, 15, 18, 20. The middle value (3rd item) is 15.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Assertion (A): Mailed questionnaire method is suitable when the informants are illiterate. Reason (R): Mailed questionnaire does not require any personal interaction. Choose the correct option:
Correct Answer: Option B
Explanation:
Mailed questionnaire is unsuitable for illiterates because they cannot read/write. The reason (no personal interaction) is true but does not make it suitable for illiterates; in fact, it makes it worse.
Mailed questionnaire is unsuitable for illiterates because they cannot read/write. The reason (no personal interaction) is true but does not make it suitable for illiterates; in fact, it makes it worse.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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If P(A)=0.7, P(B)=0.6, and the maximum possible value of P(A∩B) is 0.6, then the minimum possible value of P(A∪B) is:
Correct Answer: Option B
Explanation:
P(A∪B) = P(A)+P(B)-P(A∩B). To minimize union, maximize intersection: max=0.6. So min union = 0.7+0.6-0.6=0.7.
P(A∪B) = P(A)+P(B)-P(A∩B). To minimize union, maximize intersection: max=0.6. So min union = 0.7+0.6-0.6=0.7.
This question belongs to:
Accountancy and Statistics
Statistics
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