simont: A picture of me in 2016 (Default)

(no subject)

posted by [personal profile] simont at 08:28am on 06/05/2010
Given those figures, the exact answer: standard deviations of 2.92 and 2.75 translate into variances of 8.5264 and 7.5625, so that the difference between those two distributions is a normal distribution with mean 5.2 and variance 16.0889. The latter translates back into a standard deviation of 4.011. So the answer we're after is Φ(5.2 / √16.0889), which works out to 0.90258... .
[parent entry] [link] [reply]
simont: A picture of me in 2016 (Default)

(no subject)

posted by [personal profile] simont at 08:33am on 06/05/2010
Actually, given to how many digits that matched your Monte Carlo answer, I should have given a few more! 0.902581732473... .
[link] [parent] [reply]

March

SunMonTueWedThuFriSat
            1
 
2
 
 3
 
 4
 
 5
 
 6
1
 7
 
 8
 
9
 
 10
 
 11
 
 12
 
 13
 
 14
 
 15
 
16
 
 17
 
 18
 
 19
 
 20
 
 21
 
 22
 
23
 
 24
 
 25
 
 26
 
 27
 
 28
 
 29
 
30
 
 31