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19-12-2022
Mathematics

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in a bell system study made in 1961 regarding the dialing of calls between white plains, new york, and sacramento, california, the pmf of the number of trunks, x, required for a connection was found to be i 12345 px (i) .50 .30 .12 .07 .01 determine the distribution function of x. compute e[x], var[x] and the mode of x. let y denote the number of telephone switching exchanges that this call has to pass through. then y

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