Let be independent random variables where N has a Poisson distribution with mean 3 while each has a Poisson distribution with mean 7.
Determine and also the variance of
Any help or hints would be most appreciated. Thanks.
Read this thread: http://www.mathhelpforum.com/math-he...pectation.html
Also this one: http://www.mathhelpforum.com/math-he...variables.html