statistics and probability question.

Question

in a batch of 8,000 clock radios 6% are defective. a sample of 5 clock radios is randomly selected without replacement from the 8,000 and tested. the entire batch will be rejected if at least one of those tested is defective begat is the probability that the entire batch will be rejected?

Answer 1

You can consider this a binomial experiment with p=.06 and n=5. Then calculate P(at least one defective) which of course equals 1-P(none defective).

 

Need any more steps? comment back and tell me what you know about binomial distributions.