(New page: E[# needed] = E[SUM(i from 1 to n) Xi] = SUM(i from 1 to n)E[Xi]) |
|||
Line 1: | Line 1: | ||
E[# needed] = E[SUM(i from 1 to n) Xi] = SUM(i from 1 to n)E[Xi] | E[# needed] = E[SUM(i from 1 to n) Xi] = SUM(i from 1 to n)E[Xi] | ||
+ | <math>Xi</math> |
Revision as of 05:37, 5 October 2008
E[# needed] = E[SUM(i from 1 to n) Xi] = SUM(i from 1 to n)E[Xi] $ Xi $