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dumont
science forum beginner

Joined: 23 Oct 2006
Posts: 1 Posted: Mon Oct 23, 2006 3:38 pm    Post subject: Probability Question
Subject description: Binomial Random Variable Problem I have the following homework problems and need help please.

PROBLEM:
Let X be a binomial random variable with parameters N=8 and p=0.4 and let Y be a continuous uniform random variable defined on the interval (0,4). Furthermore, X and Y are independent.

a. Calculate the mean and variance of X
b. Calculate the mean and variance of Y
c. Compute the probability that X is greater than the mean of Y

PROBLEM:
Define the random variable Z=2X - Y
d. Calculate the range of values for Z. That is, determine a and b such that "a<=Z<=b"
e. Calculate the mean and variance of Z  Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First
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