Friday

December 19, 2014

December 19, 2014

Posted by **qwerty** on Tuesday, March 4, 2014 at 11:37am.

Let X and Y be two binomial random variables.

a) If X and Y are independent, then X+Y is also a binomial random variable.

b) If X and Y have the same parameters, N and P , then X+Y is a binomial random variable.

c) If X and Y have the same parameter P , and are independent, then X+Y is a binomial random variable.

d) Suppose that E(X)=0 . Then, X=0 .

e) Suppose that E(X^2)=0 . Then, P(X=0)=1 .

**Answer this Question**

**Related Questions**

mATH ANSWERS - 1) If the odds in favor of an event A are 3 to 1, what is the ...

Math - Determine whether the statement is true, false, or sometimes true. ...

Math - a.)If ABCD is a parallelogram, then ABCD is (always true, sometimes true...

Dimension Personal Education - True or False: The indefinite pronouns both, few...

science - Let , , and be disjoint subsets of the sample space. For each one of ...

math - Determine whether the statement is always true, sometimes true, or never ...

Physics Please check my answers - It's possible for a body to have both ...

Grammar and Composition - please check my answers: Write true if the statement ...

Algebra - A positive integer minus a positive integer is always positive. This ...

Pre-Calculus - Graphing Polynomials Decide whether each of the following is ...