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Finally, some questions about a probabilistic problem. Given a sequence of coin flips, we define a doubleton as two consecutive Hs with no H immediately before or after, or two consecutive Ts with no T immediately before or after. For example, the sequence TTHTTTHHHHTTHTHHThas 3 doubletons (boldfaced). Assume that we toss a fair coin n times (n  >= 3). With X a random variable denoting the number of doubletons in the resulting sequence, we want to calculate E[X].  For that purpose, for each i in 1..n we define an indicator random variable X_i for the event that toss i starts a doubleton; thus E[X_n] = 0 andX = \sum_{i=1}^n X_i.(Observe that when n = 3 we have E[X] =  4/8 = 1/2 since each of the sequences HHT and TTH and HTT and THH has 1 doubleton, while each of the sequences HHH and TTT and HTH and THT has 0 doubletons.)

Assume that X can be polynomially reduced  to Z, in that there exists a function f such that     forall  x,   x in X   iff   f(x) in Zand f can be computed in time polynomial in the size of x. Which inferences are then valid?

Exam 4- Chapters 14, 15, &16

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Use the table below to answer question:What is the item description for task 31 23 16.50 0300 is: (give full description)    

What is the bare labor cost for this task? (31 23 16.50 0300) Use the table below to answer question

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We are sending our employee from Iowa to Australia for six months. The employee is very nervous about this as they have not been out of the country and have not flown before. What stage is this in the expatriate adjustment?

Molluscom Contagiosum is a skin condition treated by curetting and application of an occlusive dressing.