Question 3: The number of errors made by a typist while preparing any mamuscript follows a Poisson distribution. Assume that the expected number of typographical errors is the same for all...

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Extracted text: Question 3: The number of errors made by a typist while preparing any mamuscript follows a Poisson distribution. Assume that the expected number of typographical errors is the same for all manuscripts. Among every 100 manuseripts she prepares, on an average, 50 are free of any typographical errors. Let X be the number of typographical errors she makes while preparing a new manuscript. If she is to pay a fine of amount 2* for making 0, 1, 2,... Then find the expected fine she has to pay. k typographical errors, where k %3D (Hint: e" = 1+a ++ .... 2! 3!