Question: please help this probability and statistic question with steps, thanks (b) In a vaccine injection clinic, it is found that the number of clients requesting

please help this probability and statistic question with steps, thanks

(b) In a vaccine injection clinic, it is found that the number of clients requesting service in an hour follows a Poisson distribution with an average of 7 clients in one hour. Find, in a certain hour, the probability that (i) exactly 4 clients request for service; (3 marks) (ii) 2 or more clients request for service

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