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Question: 38 there are two traffic lights on a commuters route...

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38. There are two traffic lights on a commuters route to and from work. Let Xi be the number of lights at which the commuter must stop on his way to work, and X2 be the number of lights at which he must stop when returning from work. Suppose these two variables are independent each with penf given in the acompanying table so X, X2 is a rand om sample of sue d. Let Χ, and x, be the number of lights at which a stop is required when driving to and from work on a second day assumed independent of the first day, with T = the sum of all four Xs, what now are the values of ET) and T) e. Referring back to d), what are the values ofRT .-8) and FT .> 끼Mine Dont even think of listing all possible outcomes
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