题目
题目

STAT0004_25-26 Monday Dec 8th ICA - ALL GROUPS (12:10-12:50)

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Question text Let [math: X] have a Poisson distribution with mean 2.2. Answer the following questions about [math: X]. a. What is [math: P(X≤3)] to 2 decimal places? b. What is [math: P(X≥2)] to 2 decimal places? c. If [math: P(X≤y)<0.83] what is the maximum possible integer value of y? Answer 1 Question 8[input] Answer 2 Question 8[input] Answer 3 Question 8[input]

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We are given X ~ Poisson(λ = 2.2) and asked to evaluate three parts. First, compute P(X ≤ 3). - The Poisson probabilities are P(X = k) = e^(-λ) λ^k / k!. Let e^(-2.2) ≈ 0.110803. - P(0) = e^(-2.2) ≈ 0.110803. - P(1) = e^(-2.2) * 2.2 ≈ 0.110803 * 2.2 ≈ 0.243767......Login to view full explanation

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