Suppose we know that a confidence interval is (27,35), with a margin of error of 4. Find the sample mean (x¯). Provide your answer below:

Q: c. Let λ = 5.0, find P(X ≤ 3). d. Let λ = 3.9, find P(X≥ 2). e. Let λ = 5.1, find P(X ≤ 3).

A: c)Givenλ=5.0

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