分类：教育/科学-理工学科-数学
问题：急需答案数学题BagIcontain2blackand3whit 
Bag I contain 2 ack and 3white balls Bag II contain 2 white and 4 black balls What is the probability of drawing? i)  one white and one black ball? ii)  two white balls? iii)  Two black balls? 
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