Hi all,(adsbygoogle = window.adsbygoogle || []).push({});

I think this would be a probability question.

We do a random check. 10% smokes marihuana. This test gives the right results in only 90%. One person is tested positive. How big is the chance that he really smoked marihuana?

-if there are 8 people in total.

-is it also possible to make an assumption if the size of the group is not known?

thanks a lot!

Martine

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# Probability question

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