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Three coins are tossed simultaneously.X ...

Three coins are tossed simultaneously.X is the number of heads.Find expected value and variance of X.

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CHETANA PUBLICATION-PROBABILITY DISTRIBUTIONS-EXERCISE
  1. The probability distribution of X as follows.Find (ii)P[X<2]

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  2. The probability distribution of X as follows.Find (ii)P[X<2]

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  3. Three coins are tossed simultaneously.X is the number of heads.Find ex...

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  4. Find the means and variance of the number randomly selected from 1 to ...

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  5. Obtain the probability distribution of the number of sixes in two toss...

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  6. The pmf of r.v.X as follows.P(X=0)=3k^3,P(X=1)=4k-10k^2,P(X=2)=5k-1,P(...

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  7. Verify whether each of the following function can be regarded as pmf f...

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  8. Verify whether each of the following function can be regarded as pmf f...

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  9. Given below is probability distribution of X. find k

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  10. Given below is probability distribution of X.(iii)P(X<3)

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  11. Given below is probability distribution of X.(iii)P(X<3)

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  12. Given below is probability distribution of X.(iv)P(Xle1)

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  14. Complete the table:

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  15. The pmf of r.v.X as follows:P(x)=C/x^3x=1,2,3,P(x)=0,otherwise.Find th...

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  16. Verify which of the following is p.d.f of r.v.X : (i)f(x)=sin x, for 0...

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  17. Verify which of the following id p.d.f of r.v.X: (i) f(x)= sinx for 0...

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  18. Verify which of the following is p.d.f of r.v. X : (iii) f(x)=2, for 0...

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  19. It is known thet error in measured of reaction temperature (in 0^@) in...

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  20. It is known thet error in measured of reaction temperature (in 0^@) in...

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