If P(A)=0.7, P(B)=0.6, and P(A∪B)=0.9, then P(A∩B) is: MCQ with Answer and Explanation
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Question #1
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If P(A) = 0.6, P(B) = 0.3, and P(A ∩ B) = 0.18, then events A and B are:
Correct Answer: Option C
Explanation:
Events are independent if P(A ∩ B) = P(A) × P(B). Here, 0.6 × 0.3 = 0.18, satisfying the condition.
Events are independent if P(A ∩ B) = P(A) × P(B). Here, 0.6 × 0.3 = 0.18, satisfying the condition.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The sum of squares of deviations from the mean is:
Correct Answer: Option D
Explanation:
The sum of squared deviations from the mean is minimum; from any other point it would be larger.
The sum of squared deviations from the mean is minimum; from any other point it would be larger.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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In the theory of attributes, the class frequency (AB) denotes:
Correct Answer: Option A
Explanation:
The notation (AB) represents the number of items possessing both attributes A and B.
The notation (AB) represents the number of items possessing both attributes A and B.
This question belongs to:
Accountancy and Statistics
Statistics
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