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Sir, i am stuck on this question only answers no explanation QUESTION 9 Suppose a random variable X follows a Poisson distribution (Q9 and Q10).

Sir, i am stuck on this question only answers no explanation

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QUESTION 9 Suppose a random variable X follows a Poisson distribution (Q9 and Q10). Find P (X S 3), if mean = 4. O A. 0.6568 O B. 0.4335 O C. None of the answers given O D. 0.5826 O E. 0.2138 QUESTION 10 Find the variance, if mean = 16. OA. 8 O B. 4 C. None of the answers given O D. 64 O E. 16

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