Recent questions tagged Probability-interview-questions

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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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Q: Two events E and F are independent. If P(E) = 0.3, P(E ∪ F) = 0.5, then P(E | F)–P(F | E) equals

Two events E and F are independent. If P(E) = 0.3, P(E ∪ F) = 0.5, then P(E | F)–P(F | E) equals A. 2/7 B. 3/25 C. 1/70 D. 1/7 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement the probability of getting exactly one red ball is

A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement the probability of getting ... /56 D. 15/29 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement the probability that exactly

A bag contains 5 red and 3 blue balls. If 3 balls are drawn at random without replacement the probability that exactly ... /28 D. 5/28 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Three persons, A, B and C, fire at a target in turn, starting with A. Their probability of hitting the target are 0.4, 0.3 and 0.2 respectively.

Three persons, A, B and C, fire at a target in turn, starting with A. Their probability of hitting the target are 0 ... 0.336 D. 0.452 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Assume that in a family, each child is equally likely to be a boy or a girl. A family with three children is chosen at random.

Assume that in a family, each child is equally likely to be a boy or a girl. A family with three children is chosen at ... . 2/3 D. 4/7 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A die is thrown and a card is selected at random from a deck of 52 playing cards.

A die is thrown and a card is selected at random from a deck of 52 playing cards. The probability of getting an even ... 1/8 D. 3/4 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance