math(statistics)

posted by .

1. Assume that x is a binomial variable with an expected value of 3 and variance of 2.4 .find (a) P(x=0) (b) P(x=12)



THnxs

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math,correction

    Find expected value for the random variable. its suppost to be a table 6 X 2 i used the .... to represent separation z.....3......6.....9.....12.......15 p(z)..0.14..0.29..0.36..0.11...0.10 So what i did is i said e(x) = 3 (0.14)+ …
  2. Intro to probability

    Two balanced coins are tossed. What are the expected value and the variance of the number of heads observed?
  3. stats

    Consider an infinite population with 25% of the elements having the value 1, 25% the value 2, 25% the value 3, and 25% the value 4. If X is the value of a randomly selected item, then X is a discrete random variable whose possible …
  4. Statistics (binomial random variable)

    Let x be a binomial random variable with n = 10 and p = .4 Find the values. P (x›4) P (x≤4) I could really use some examples to help me get started and understand it. Thanks
  5. Statistics

    Which of these statements is not true about the variance in a binomial distribution B(n, p)?
  6. business statistics

    Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?
  7. probability April-005

    X is a random variable following binomial distribution with mean 2.4 and variance 1.44 find
  8. Statistics

    STATISTICS: I'm struggling with how to calculate the following problems: *Assume that X~N(3,1.5) For what value of X is Pr(x<K) = 50% *Assume that X~N(3,1.5) What value of X would be equal to a z-score of -2?
  9. statistics

    A random variable has aprobability function p(x)=kx; x=1,2,3,4,5.find the value of k, p(x>=3),compute mean and variance of x.
  10. Stats

    let x be a binomial random variable with expected valuee 4 and variance 2 a) What is P(X=3)?

More Similar Questions