Recent questions tagged Probability-interview-questions

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Q: A bag contains 4 white and 5 black balls. Another bag contains 9 white and 7 black balls.

A bag contains 4 white and 5 black balls. Another bag contains 9 white and 7 black balls. A ball is ... ball drawn is white. Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Bag I contains 3 black and 2 white balls, Bag II contains 2 black and 4 white balls. A bag and a ball is selected at random.

Bag I contains 3 black and 2 white balls, Bag II contains 2 black and 4 white balls. A bag and a ball is ... of selecting a black ball. Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A box has 5 blue and 4 red balls. One ball is drawn at random and not replaced. Its colour is also not noted.

A box has 5 blue and 4 red balls. One ball is drawn at random and not replaced. Its colour is also not ... of second ball being blue? Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Four cards are successively drawn without replacement from a deck of 52 playing cards. What is the probability that all the four cards are kings?

Four cards are successively drawn without replacement from a deck of 52 playing cards. What is the probability that ... are kings? Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A die is thrown 5 times. Find the probability that an odd number will come up exactly three times.

A die is thrown 5 times. Find the probability that an odd number will come up exactly three times. Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: Ten coins are tossed. What is the probability of getting at least 8 heads?

Ten coins are tossed. What is the probability of getting at least 8 heads? Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice?

The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice? Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: A lot of 100 watches is known to have 10 defective watches. If 8 watches are selected (one by one with replacement) at random,

A lot of 100 watches is known to have 10 defective watches. If 8 watches are selected (one by one with ... least one defective watch? Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: The probability distribution of a random variable X is given below:

The probability distribution of a random variable X is given below: (i) Determine the value of k. (ii) Determine P (X ≤ ... P (X > 2). Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance

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Q: For the following probability distribution determine standard deviation of the random variable X.

For the following probability distribution determine standard deviation of the random variable X. Select the correct answer from above options...

asked Nov 20, 2021 in Education by JackTerrance