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January 31, 2015

January 31, 2015

Posted by **Vanny** on Sunday, February 20, 2011 at 6:40pm.

- math -
**Johnathon**, Sunday, February 20, 2011 at 7:36pmprobability is number of defective bulbs over total number of bulbs. 6% of 150 over 150. probability = 3/50

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