statistics

posted by .

A random variable x has a following probability distribution.
x: 0 1 2 3
P(X=x) 1/6 1/2 1/5 2/15
How to calculate E(1/(X+1))?

  • statistics -

    In a production process of a certain item made in large quantities, the proportion of defectives is 0.005. A random sample of 200 is selected. What is the probability that there are 3 defectives in the sample? Assume Poisson distribution. Value of e = 2.71828

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Statistics

    Suppose that the probability distribution of a random variable x can be described by the formula P(x) = x/15 For each of the values x = 1, 2, 3, 4, and 5. For examples, then, p(x=2) = p(2) = 2/15 a Write out the probability distribution …
  2. Statistics

    Suppose that the probability distribution of a random variable x can be described by the formula P(x) = x/15 For each of the values x = 1, 2, 3, 4, and 5. For examples, then, p(x=2) = p(2) = 2/15 a Write out the probability distribution …
  3. statistics

    A random variable may assume any value between 10 and 50 with equal likelihoods. (Uniform distribution) Determine the following values for this probability distribution: a) b) c) f(x) = d) P(x < 25) e) P(x > 15) f) P( 12 < …
  4. Statistics and Probability

    A computer supply house receives a large shipment of blank CDs each week. Past experience has shown that the number of flaws per CD can be described by the following probability distribution, where the random variable X represents …
  5. Statistics and Probability

    Suppose you took 1000 random samples of size 200 from the Poisson distribution with u = 5 and computed a 90% confidence interval for each sample. Approximate the probability that at least 920 of these intervals would contain the mean …
  6. Statistics and Probability

    Suppose you took 1000 random samples of size 200 from the Poisson distribution with u = 5 and computed a 90% confidence interval for each sample. Approximate the probability that at least 920 of these intervals would contain the mean …
  7. statistics

    two dices are tossed once. let the random variable be t he sum of the up faces on the dice. A). find and graph the probability distribution of the random variable. and b) calculate the mean (or expectation) of this distribution
  8. math

    A random variable x has a following probability distribution. x: 0 1 2 3 P(X=x): 1/6 1/2 1/5 2/15 How to calculate E(1/(X+1))?
  9. Statistics/probability

    The random variable X has a binomial distribution with the probability of a success being 0.2 and the number of independent trials is 15. The random variable xbar is the mean of a random sample of 100 values of X. Find P(xbar<3.15).
  10. Statistics

    A random variable x has the following probability distribution: x f(x) 0 0.08 1 0.17 2 0.45 3 0.25 4 0.05

More Similar Questions