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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:An even number (2 events); An odd and then an even (4 events); or Two odds, and then an even (4 events). A total of 10 events.
April 1st, 2014, 08:50 AM   #3
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 Originally Posted by v8archie You can pull out:An even number (2 events); An odd and then an even (4 events); or Two odds, and then an even (4 events). A total of 10 events.

thanks but the last one i don't get it ? may you explain please ?

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