Recent questions tagged Probability-mcq

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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

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Q: A box contains 3 orange balls, 3 green balls and 2 blue balls. Three balls are drawn at random from the box without replacement.

A box contains 3 orange balls, 3 green balls and 2 blue balls. Three balls are drawn at random from the box without ... 1/28 D. 167/168 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A flashlight has 8 batteries out of which 3 are dead. If two batteries are selected without replacement and tested,

A flashlight has 8 batteries out of which 3 are dead. If two batteries are selected without replacement and tested, the ... 14 D. 3/28 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Eight coins are tossed together. The probability of getting exactly 3 heads is

Eight coins are tossed together. The probability of getting exactly 3 heads is A. 1/256 B. 7/32 C, 5/32 D. 3/32 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Two dice are thrown. If it is known that the sum of numbers on the dice was less than 6, the probability of getting a sum 3, is

Two dice are thrown. If it is known that the sum of numbers on the dice was less than 6, the probability of getting a ... . 1/5 D. 2/5 Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance