Ask Experts Questions for FREE Help !
Ask
    vickia's Avatar
    vickia Posts: 7, Reputation: 1
    New Member
    		  
    #1

    Oct 11, 2011, 10:18 AM
    if X is a binomial random variable with parameter n and p, find E(X) andVar(X).
    I am looking for a simpler method regarding X as a sum of n Bernoulli random variables?
    thanks

Check out some similar questions!

Binomial random variable? [ 1 Answers ]

A new treatment for baldness is known to be effective in 70% of the cases treated. Four bald members of the same family are treated. Let X = the number of successfully treated members. Is X a binomial random variable? Explain!

Expectation and variance of a random variable [ 1 Answers ]

Expectation and variance of a random variable Let be a random variable with the following probability distribution: Value of -30 0.25 -20 0.05 -10 0.25 0 0.20 10 0.25

Binomial Random Variable [ 3 Answers ]

Hello- I was wondering if someone could help me out? I was wondering if I am correct on these questions? (a) A sales person finds that in the long run one out of five sales calls are successful in the market he operates. Thirty sales calls are made every week. Let X denote the number of...

Random numbers , variable arrays [ 1 Answers ]

here is my problem To create a program that generates 7 random numbers display it in 7 labels (not repeat same number twice)and there a button if u click it picks out the highest number. Im a beginner so I need code.

View more questions Search
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.