A manufacturer of videotapes ships them in lots of 1200 tapes per lot. Before shipment , 20 tapes are randomly selected from each lot and tested. If none is defective , the lot is shipped. If one or more are defective , every tape in the lot is tested . a )What is the probability that a lot will be shipped if it contains 10 defectives ? b ) What is the probability that a lot will be shipped if it contains 20 defectives ? c ) What is the probability that a lot will be shipped if it contains 30 defectives ? (USE FORMULAS NOT EXCEL)

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