13 Feb
2014
13 Feb
'14
2:43 p.m.
It's -inf with probability 1/2 and +inf with probability 1/2. Brent On 2/13/2014 11:18 AM, Dan Asimov wrote:
Let e_j, j = 1,2,3,… be independent random variables each taking the values +-1 with probability 1/2.
Let the random variable X be defined as
X := Sum_{n=1…oo} e_j/2^j.
PUZZLE: What is the distribution of X ???
—Dan _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun