Thread: Homework Q5 View Single Post
#1
02-21-2015, 10:34 AM
 Andrew87 Junior Member Join Date: Feb 2015 Posts: 6
Homework Q5

Hi, I'm working on the 6-th question but I can't get the solution.

I solved Q5 and I found a probability to get on just one sample (N=10) of 0.0047. Then to compute the probability to get at least one sample with , I modeled the number of samples with 0 red marbles with a binomial random variable . Hence, the probability I need is

and

Finally , so my closest answer is [3] = 0.550, however the solution report [c] as right answer. Where did I make a mistake ? Thank you in advance for your time (and sorry for my english).