The successive trials are with replacement in
A). Geometric distribution
B). Binomial distribution
C). Hypergeometric distribution
D). None of above
Binomial distribution
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1. A brother and sister appear for an interview against two vacant posts in an office. The probability of the brother's selection is 1/5th and that of the sister's selections is 1/3rd. What is the probab
2. A box contains 3 white, 4 red and 7 blue erasers. If five erasers are taken at random then the probability that all the five are blue color is: -
3. The mean of hypergeometric distribution is
4. Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is -.
5. Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. A box contains 3 black and 5 white balls. A ball is drawn at random from the box. Quantity A: Probability that the ball is black Quantity B: Probability that the ball is white
6. I forgot the last digit of a 7- digit telephone number. If I randomly dial the final 3 digits after correctly dialing the first four, then what is the chance of dialing the correct number ?
7. Given below are two quantities named A and B. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. In a bag, there are 6 red balls, 6 orange balls, and x green balls. The probability of getting the green ball is 1/4. Quantity A: x Quantity B: 4
8. A fair coin is tossed four times, the probability of getting four heads is
9. The probability of occurrence of an event A is ¼ and that of event B is ½. The probability that both will occur is \(\frac{1}{8}\). What is the probability that either A or B must occur?
10. Tow persons A and B appear in an interview for two vacancies. If the probabilities of their selections are 1/3 and 1/6 respectively, then the probability that none of them is selected, is
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