# SB3.1 Applied Probability - Material for the year 2020-2021

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Part A Probability.

16 lectures

[Teaching responsibility of the Department of Statistics. Please note, this course is offered from the schedule of Mathematics Department Units]

The course materials have been made available through the Stats department on Canvas, including the lecture videos: https://canvas.ox.ac.uk/courses/66133

### Assessment type:

- Written Examination

This course is intended to show the power and range of probability by considering real examples in which probabilistic modelling is inescapable and useful. Theory will be developed as required to deal with the examples.

Poisson processes and birth processes. Continuous-time Markov chains. Transition rates, jump chains and holding times. Forward and backward equations. Class structure, hitting times and absorption probabilities. Recurrence and transience. Invariant distributions and limiting behaviour. Time reversal. Renewal theory. Limit theorems: strong law of large numbers, strong law and central limit theorem of renewal theory, elementary renewal theorem, renewal theorem, key renewal theorem. Excess life, inspection paradox.

Applications in areas such as: queues and queueing networks - M/M/s queue, Erlang's formula, queues in tandem and networks of queues, M/G/1 and G/M/1 queues; insurance ruin models; applications in applied sciences.

- J. R. Norris,
*Markov Chains*(Cambridge University Press, 1997). - G. R. Grimmett and D. R. Stirzaker,
*Probability and Random Processes*(3rd edition, Oxford University Press, 2001). - G. R. Grimmett and D. R. Stirzaker,
*One Thousand Exercises in Probability*(Oxford University Press, 2001). - S. M. Ross,
*Introduction to Probability Models*(4th edition, Academic Press, 1989). - D. R. Stirzaker,
*Elementary Probability*(2nd edition, Cambridge University Press, 2003).