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04.07.2008 at 11:20AM PDT, ID: 23302253
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Compute probability for draw

Asked by ragoran in Math & Science Questions

Tags: Probability

My university days are long gone... I remember some of the probability classes, but not enough, so maybe someone can help me with this.

You have a bag containing n balls (let say 30) numbered from 1 to n, out of which you will pick r balls (let say 20).  You also have a predetermine serie of x numbers (lets say 5) that are between 1 and n.

What is the probability that all the x numbers are within the r picked balls ?

Or, based on the example, I pick 20 balls out of 30, what are the probability that in the 20 balls, I will have the 5 numbers I am looking for ?

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Keywords: Compute probability for draw
Title
1 drawing probability
2 Marble Probability
3 Probability
4 probability question
5 Balls!
6 Probability Question No. 2
 
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[+][-]04.07.2008 at 11:27AM PDT, ID: 21299398

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Zone: Math & Science Questions
Tags: Probability
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Solution Provided By: Infinity08
Participating Experts: 3
Solution Grade: A
 
 
[+][-]04.07.2008 at 11:37AM PDT, ID: 21299468

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[+][-]04.07.2008 at 12:09PM PDT, ID: 21299666

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[+][-]04.07.2008 at 12:22PM PDT, ID: 21299750

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[+][-]04.07.2008 at 12:22PM PDT, ID: 21299753

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[+][-]04.07.2008 at 12:23PM PDT, ID: 21299761

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[+][-]04.07.2008 at 12:24PM PDT, ID: 21299766

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[+][-]04.07.2008 at 12:29PM PDT, ID: 21299797

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[+][-]04.07.2008 at 12:31PM PDT, ID: 21299821

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