使用:<div class="myTheorem">...
結果:
假設 X, Y 為獨立的隨機變數,則:
- E[X+Y]=E[X]+E[Y]
- E[XY]=E[X] E[Y]
- Var[X+Y]=Var[X]+Var[Y]
使用:<div class="myProof">
結果:
使用:<div class="myQuestion">
結果:
this is my Question.
what is ...?
what is ...?
使用:<div class="myAnswer">
結果:
this is my Answer
使用:<table class="myTable"> ... </table>
結果:
| 組合 | 平均數 | 機率 |
|---|---|---|
| {1,2,5} | \(\overline{x}_1=\dfrac{1+2+5}{3}\) | \(\dfrac{1}{4}\) |
| {1,2,8} | \(\overline{x}_2=\dfrac{1+2+8}{3}\) | \(\dfrac{1}{4}\) |
| {1,5,8} | \(\overline{x}_3=\dfrac{1+5+8}{3}\) | \(\dfrac{1}{4}\) |
| {2,5,8} | \(\overline{x}_4=\dfrac{2+5+8}{3}\) | \(\dfrac{1}{4}\) |