Find probability that three missiles will fire

Reference no: EM13139811

1. From a lot of 10 missiles, 4 are selected at random and fired. If the lot contains 3 defective missiles that will not fire, what is the probability that

(a) 3 will fire?
(b) At most 2 will not fire?
(c) What is the expected number of missiles that will fire?

Reference no: EM13139811

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