A box of 1717 parts contains 77 that are defective. A worker picks parts one at a time and attempts to install them.

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A box of 1717 parts contains 77 that are defective. A worker picks parts one at a time and attempts to install them. Find the probability of each outcome in (a) through (d). (a) The first two chosen are both good.  (Round to four decimal places as needed.)

(b) At least one of the first three is good. (Round to four decimal places as needed.)

(c) The first four picked are all good. (Round to four decimal places as needed.)

(d) The worker has to pick five parts to find one that is good. (Round to four decimal places as needed.)