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Recent questions tagged bionomial-distribution

In a binomial distribution the mean is 15 and variance is 10, then parameter $n$ is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

Ordinary dice are rolled. The probability that at least half of them will show at least 3 is

asked Jan 9, 2014 by thanvigandhi_1

1 answer

A fair coin is tossed 100 times. The probability of getting tails on odd number of times is

asked Jan 9, 2014 by thanvigandhi_1

1 answer

A coin is tossed 7 times. The probability that he wins the toss on more occasions is

asked Jan 9, 2014 by thanvigandhi_1

1 answer

In a binomial distribution $B \bigg( n, P = \large\frac{1}{4} \bigg)$ If the probability of at least one success is greater than or equal to $ \large\frac{9}{10}$ then $n$ is greater than

asked Jan 9, 2014 by thanvigandhi_1

1 answer

If X is binomial variate with parameters $n$ and $p$ where $ 0 < P < 1$ such that $ \large\frac{P(x=r)}{P(x=n-r)}$ is independent of n and r then p equals.

asked Jan 9, 2014 by thanvigandhi_1

1 answer

Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently equals

asked Jan 8, 2014 by thanvigandhi_1

2 answers

A box contains 24 identical bals of which 12 are white and remaining black. The balls are drawn at random from the box one at a time with replacement. The probability that a white ball is drawn for the 4th time on the 7th draw is

asked Jan 8, 2014 by thanvigandhi_1

1 answer

A fair coin is tossed 100 times. The probability of getting tails on odd number of times is

asked Jan 6, 2014 by thanvigandhi_1

1 answer

The probability of guessing correctly atleast 8 out of 10 answers on a true - false examination is :

asked Jan 6, 2014 by thanvigandhi_1

1 answer

If $X$ follows a binomial distribution with parameters $n$ and $p$. $p \lt 0 \lt 1$ If $ P(X=r)/P(X=n-r)$ is independent of $ n \:$ and$\: r$ , then value of p is :

asked Jan 6, 2014 by thanvigandhi_1

1 answer

If the chance that a ship will arrive safely at a port is $ \large\frac{9}{10}$, the chance that out of 5 ships expected to arrive at the port at least 4 will arrive safely is

asked Jan 4, 2014 by thanvigandhi_1

1 answer

A fair coin is tossed 10 times. The probability that the coin shows head exactly 4 times is

asked Jan 4, 2014 by thanvigandhi_1

1 answer

If on an average 2 ships in every 10, sinks. The probability that out of 5 ships expected to arrive, at least three will arrive safely is

asked Jan 3, 2014 by thanvigandhi_1

1 answer

The probability of a man hitting a target is $ \large\frac{3}{4}$. He tries 5 times. The probability that the target will be hit at least 3 times is

asked Jan 3, 2014 by thanvigandhi_1

1 answer

Three mangoes and three apples are kept in a box. If two fruits are selected at random from the box, the probability that the selection will contain one mango and one apple is

asked Jan 3, 2014 by thanvigandhi_1

1 answer

The probability that in a throw of 12 dice 1,1, 2,2, 3,3, 4,4, 5,5, 6,6 will occur in any sequence is :

asked Jan 2, 2014 by thanvigandhi_1

1 answer

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