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 Oct 23 comment How do you sum PDF's of random variables? Thank you so much Oct 22 comment How do you sum PDF's of random variables? I'm not really sure how to convolve a Bernoulli and Binomial random variable... any way to get a pointer with that? Oct 22 comment How do you sum PDF's of random variables? Thank you very much, I wasn't even sure how to get started on this. Oct 22 comment Averages of mixed random variables Thanks a ton, really helped me Oct 22 comment Averages of mixed random variables Thank you very much, helped me with understanding this Oct 22 comment Averages of mixed random variables Thanks to all of you, really helped me understand this Oct 22 comment Averages of mixed random variables There is nothing stated on the problem about independence but I believe unless it is explicitly stated we are allowed to assume they are independent. Sep 5 comment Calculate the sum of the first N terms of the sequence Yeah I see what you mean. Thanks! Sep 5 comment Calculate the sum of the first N terms of the sequence Got it! Thank you. Answer seems to be $n/2(a_1 + a_{n})$ Sep 5 comment Closed form solution of a definite integral? No more help needed, I got it. Thank you! Sep 5 comment Closed form solution of a definite integral? Alright, thanks. Disregard what I had typed here before, I had gotten confused. Sep 5 comment Closed form solution of a definite integral? It's been a while since doing IBP, for the second one I ended up getting $-e^{-x}\(x^2 - 2x) - 2$, does that seem correct? Sep 5 comment Closed form solution of a definite integral? Nevermind, I see where you said it is a 'fancy way of asking to compute the integrals'. Thank you! This was very helpful. Sep 5 comment Closed form solution of a definite integral? So are you saying I should be using integration by parts for both, or just the second? I'm not really sure what a closed form solution is aside from what I've been able to read up on it by searching online. Sep 5 comment Closed form solution of a definite integral? Sorry, just accepted it. Sep 5 comment Closed form solution of a definite integral? i.stack.imgur.com/RZeQY.png