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April 1st, 2014, 05:49 AM  #1 
Newbie Joined: Mar 2014 Posts: 4 Thanks: 0  Probability
In a box , there are 4 balls each tagged with a specified number 1 , 2 ,3 & 4. In a random way , we get a ball without seeing it . We keep doing this as long as we get an odd number ? What's the community of elementary events. 
April 1st, 2014, 08:43 AM  #2 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,691 Thanks: 2670 Math Focus: Mainly analysis and algebra 
You can pull out:

April 1st, 2014, 08:50 AM  #3 
Newbie Joined: Mar 2014 Posts: 4 Thanks: 0  

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