Help me with a probability calc

Cius

Honorary Master
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Jan 20, 2009
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So say I play a game where I have the following odds of getting the result shown:
62% - 70
20% - 140
10% - 210
5% - 280
3% - 350

What would be the average return of many repeated runs, and how would one calculate this? I did some excel math but am not sure I have it correct. I got to 116,9.
 
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