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Recent questions tagged Probability-mcq

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Q: A and B are events such that P(A) = 0.4, P(B) = 0.3 and P(A ∪ B) = 0.5. Then P (B′ ∩ A) equals A. 2/3 B. 1/2 C. 3/10 D. 1/5
    A and B are events such that P(A) = 0.4, P(B) = 0.3 and P(A ∪ B) = 0.5. Then P (B′ ∩ A) equals A. 2/3 B. 1/2 C. 3/10 D. 1/5 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: You are given that A and B are two events such that P(B)= 3/5, P(A | B) = 1/2 and P(A ∪ B) = 4/5, then P(A) equals
    You are given that A and B are two events such that P(B)= 3/5, P(A | B) = 1/2 and P(A ∪ B) = 4/5, then P(A ... /10 B. 1/5 C. 1/2 D. 3/5 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: Let P(A) = 7/13, P(B) = 9/13 and P(A ∩ B) = 4/13. Then P(A′|B) is equal to A. 6/13 B. 4/13 C. 4/9 D. 5/9
    Let P(A) = 7/13, P(B) = 9/13 and P(A ∩ B) = 4/13. Then P(A′|B) is equal to A. 6/13 B. 4/13 C. 4/9 D. 5/9 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: If A and B are two independent events with P(A) = 3/5 and P(B) = 4/9, then P (A′ ∩ B′) equals
    If A and B are two independent events with P(A) = 3/5 and P(B) = 4/9, then P (A′ ∩ B′) equals A.4/15 B. 8/45 C. 1/3 D. 2/9 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: If two events are independent, then A. they must be mutually exclusive B. the sum of their probabilities must be equal to 1
    If two events are independent, then A. they must be mutually exclusive B. the sum of their probabilities must ... the above is correct Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: Let A and B be two events such that P(A) = 3/8, P(B) = 5/8 and P(A ∪ B) = 3/4. Then P(A | B).P(A′ | B) is equal to
    Let A and B be two events such that P(A) = 3/8, P(B) = 5/8 and P(A ∪ B) = 3/4. Then P(A | B).P(A′ | B) ... .2/5 B. 3/8 C. 3/20 D. 6/25 Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: If the events A and B are independent, then P(A ∩ B) is equal to A. P (A) + P B. (B) P(A) – P(B) C. P (A) . P(B) D. P(A) | P(B)
    If the events A and B are independent, then P(A ∩ B) is equal to A. P (A) + P B. (B) P(A) – P(B) C. P (A) . P(B) D. P(A) | P(B) Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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