There are three typists in an office. Each typist can type an average of 6 letters per hour. If a letter arrives for being typed at the rate of 15 letters per hour, What s the average number of letters waiting to be typed? What s the average time 3 letter has to spend waiting and for being typed? What s the probability that a letter wil take longer than 20 minutes waiting to be typed and being typed?
There are three typists in an office. Each typist can type an average of 6 letters per hour. If a letter arrives for being typed at the rate of 15 letters per hour, What s the average number of letters waiting to be typed? What s the average time 3 letter has to spend waiting and for being typed? What s the probability that a letter wil take longer than 20 minutes waiting to be typed and being typed?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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There are three typists in an office. Each typist can type an average of 6 letters per hour. If a letter arrives for being typed at the rate of 15 letters per hour, What s the average number of letters waiting to be typed? What s the average time 3 letter has to spend waiting and for being typed? What s the probability that a letter wil take longer than 20 minutes waiting to be typed and being typed?
Transcribed Image Text:There are three typists in an office. Each typist can type an average of 6 letters per hour. If a letter arrives for being typed at the rate of 15 letters per hour,
What is the average number of letters waiting to be typed?
What is the average time a letter has to spend waiting and for being typed?
What is the probability that a letter will take longer than 20 minutes waiting to be typed and being typed?
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