Statistics Help Homework Problem

Posted on 2014-04-01 12:05:00 in Statistics by NICK N

I'm in a beginning statistics class and need help on a homework problem.



A company that builds circuit boards estimates that 15% of the boards that they produce are defective. for a batch of 50 circuit boards, what is the probability that 40 or more boards work properly?



I really have no idea where to start on this problem. It seems simple, so I may be overthinking it.



thanks,

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