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

I have been given the probability that a drill strikes oil in a region = 0.2.

I know that if I wanted to find the probabilty of say striking oil 3 times out of 5 wells

It would be 5Choose3 = 5!/((2!)(3!)) * (1/5)^{3}* (4/5)^{2}= 0.0512

My question is how would I go about finding the probability that the third strike occurs on the fifth well?

regards

Brendan

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# Binomial distribution

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