# Thread: Probability question

1. ## Probability question

Let's say we have 60 balls of which 17 are red and the rest black. If I pick 7 balls at random, what is the probability that i picked at least 3 red balls?

3. ## Re: Probability question

You think I didn't google it already???

4. ## Re: Probability question

Originally Posted by spisi
You think I didn't google it already???
Evidently, yes, and my action is based on experience on many forums. See Bayes' Theorem and the Reasonable Person standard.

Since you now have at least two search results by two different people (yourself & me) are you in any better shape to understand the question and answer it?

6. ## Re: Probability question

Substituting max & min values in each of the four boxes gives you 2^4 tests to run to try to dope out how this thing works.

And. . .,What makes this calculator blow up?
Understanding the why of the blowups may flesh out the framework of this method.

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