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Six coins are tossed simultaneously . Th...

Six coins are tossed simultaneously . The probability of getting at least 4 heads is

A

`(21)/(64)`

B

`(11)/(32)`

C

`(7)/(64)`

D

`(1)/(2)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-RANDOM VARIABLE -EXERCISE - I
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  2. For binomial distribution n=10, q=0.4, then mean is

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  3. Six coins are tossed simultaneously . The probability of getting at le...

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  4. If a binomial distribution have parameters 9, 1//3 then P(X=4)=

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  5. If the mean and variance of a binomial distribution are 15//4 and 15//...

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  6. Let X be a binomially distributed variate with mean 10 and variance 5....

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  15. In a Poisson distribution if P(X=0)=P(X=1)=k, the value of k is

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  16. If X is a poisson distribution such that P(X=1)=P(X=2)then,P(X=4)=

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  17. If X is a Poisson variate and P(X=1)=2P(X=2) them P(X=3)=

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  18. A random variable X has poisson distribution with mean 2. Then P(xlt1....

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