What is the expected number of transmission attempts needed

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Q. A large population of aloha users manage to generate 50 request/sec,including both originals and retransmissions.time is slotted in units 40msec

(a)What is the change of succession first attempt
(b)What is the probability of exectly k collisions and than a success?
(c)What is the expected number of transmission attempts needed?

Reference no: EM1356371

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