The probability distribution of the discrete random variable X is given below. 3-x f(x)= X Find the mean of X. , x = 0, 1, 2, 3. The mean of X is (Type an integer or decimal rounded to three decimal places as needed.)

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A: Given information: μ=151000σ=35000 n=77

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A: Basic concept of discrete probability distribution are used

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A: n1=80, x1=64 n2=60, x2=39 X: people got sick 1: Ate fish 2: Did not eat fish

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Q: (d) If the mean score was u = 157 with standard deviation o = 19, what was the final exam score for…

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A: The given is: