| Line 1: | Line 1: | ||
| − | **S4= sum of 4 other suitcases | + | **S4= sum of 4 other remaining suitcases |
| − | **E[xi] = expected value of | + | **E[xi] = expected value of the suitcase picked |
| − | + | ||
**S5 = S4 + E[xi] | **S5 = S4 + E[xi] | ||
| + | **E[(S5- Xi)/4] = (S5 - E[xi])/4 | ||
| + | **s5 = Summation of 10^i from i = 0 to 4 | ||
| + | **E[xi] = summation of (1/5)*10^i from i = 0 to 4 | ||
| + | ** solve for E[xi] | ||
Latest revision as of 06:42, 24 September 2008
- S4= sum of 4 other remaining suitcases
- E[xi] = expected value of the suitcase picked
- S5 = S4 + E[xi]
- E[(S5- Xi)/4] = (S5 - E[xi])/4
- s5 = Summation of 10^i from i = 0 to 4
- E[xi] = summation of (1/5)*10^i from i = 0 to 4
- solve for E[xi]
