jay

May
1
comment Gamma and exponential distribution
Thanks!! Thanks for the fixing the text, and thanks for the help... Awesome!
May
1
asked Gamma and exponential distribution
May
1
comment Difficult Expectation problem
100*EX + 50 = 100*90 + 50 = $9050 for the average cost, and for the deviation 100*5 = $500 ... sorry for the confusion, I'm just not understand exactly what the problem is asking based on the information given, maybe it's more a semantics issue. Thanks everyone!!!
May
1
comment Difficult Expectation problem
I'm actually lost on this problem....
May
1
comment Difficult Expectation problem
I know how to find the mean and standard deviation, but what value am I using for x ?
May
1
comment Difficult Expectation problem
Not sure, I will see if I can figure it out .
May
1
awarded Commentator
May
1
comment Difficult Expectation problem
The standard deviation = 5, and the mean is 90. I think X is just a probability, not sure how to calculate, that is what I am stuck on!
May
1
asked Difficult Expectation problem
Apr
30
comment probability dice experiment
wow. Awesome, thanks!
Apr
30
comment probability dice experiment
Thanks so much!!
Apr
30
comment probability dice experiment
Right, I'm seconding guess now because f(x) does not equal 1. Sorry for the confusion
Apr
30
comment probability dice experiment
Thanks, so how is EX computed for this probability function?
Apr
30
comment probability dice experiment
I think I got it, thanks
Apr
30
comment probability dice experiment
I'm seconding guessing my "obvious" insight now...
Apr
30
comment probability dice experiment
Yea, the EX for this function and if this is indeed a geometric distribution, I have no way of telling
Apr
30
comment probability dice experiment
X=9, it's the 9th trial.. Sorry about that typo
Apr
30
asked probability dice experiment
Apr
30
comment expectation in coin draw problem
Got it.. Thanks!
Apr
30
awarded Student
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