Electronic baseball games manufactured by Tempco Electronics are shipped in lots of 36. Before shipping, a quality-control inspector randomly selects a sample of 7 from each lot for testing. If the sample contains any defective games, the entire lot is rejected. What is the probability that a lot containing exactly 3 defective games will still be shipped? (Round your answer to three decimal places.)

Question

amistre64 · Answer

sounds like a binomial setup

amistre64 · Answer

7 choose 3,  times ... well without any other information we can assume the probability of a particular fail/success is .5