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(5) 2. Let X be the number of packages being mailed by a randomly selected customer at a certain shipping facility. Suppose t

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a) below is distribution table forx1,x2x3 P(x1x2,x3) xbar 0.027 0.018 0.045 0.018 0.012 0.030 0.045 0.030 0.075 0.018 0.012 0

from above: pmf of xn is as follows: P(xbar) 0.027 0.054 1000 1.333 1667 2.000 2.333 2667 3.000 0.188 0.285 0.150

P(xbar) 0.300 0.250 0.200 0.150 0.100 0.050 0.000 .000 1333 1.667 2000 2.333 2.6673.000 Pixbar) Ь) smallest value of S2 is O

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