Weighted probability: a machine will produce a sweet maximum 1 in 10 times

Zudecke

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Joined
Jan 18, 2016
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3
Hi,

I'm wondering if anyone could help me derive a formula to show a weighted probability (sort of random) for something.

For example, if a machine will produce a sweet maximum 1 in 10 times, how would I construct an equation so that it isn't ALWAYS 1 in 10 times. In other words, I'm trying to stop the scenario where one person could simply wait and watch for sweets to be dispensed and then be sure they are the 10th person and "lucky" recipient of the 10th sweet.

Sort of like a slot machine.

Many thanks I'm advance!

Z
 
?? It is not clear what is wanted.

Every 10th one is a winner. This is clearly no random. This causes the problem you perceive.

What's wrong with machine-generated values? What sort of mechanics or software will generate something like randomness for you?
 
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