## Introduction to elementary queuing theory and telephone traffic |

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### Contents

Introduction | 9 |

Review of elementary Probability Theory | 19 |

The Poisson distribution | 23 |

Copyright | |

13 other sections not shown

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### Common terms and phrases

arrival rate assumed automobile repair shop average frequency bability becomes available blocking probability busy channels calculation call rate cars CD CD channels are busy clearing blocked calls CM CM compute constant continuous random variable curves cust customer arrivals customer demand delay probability delay system delayed customers efficiency Engset formulae equal equipment Erlang Erlang Distribution example exponential distribution exponential with mean find the probability fixed time interval formula given holds blocked calls i-H CD ility interval dt load offered load submitted loss probability loss system mean holding mean number minutes number of busy number of channels number of customers number of trunks obtain offered calls offered load omer operation overflow group P(ft Petr Beckmann Poisson distributed probability density problem Pt(k queue Queuing Theory random order repair served service channels service completion service system subscriber substituting Table telephone facility telephone traffic Theorem total number trunk group