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Lecture11_updated

# Lecture11_updated - Lecture11 27thMay2011...

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Lecture 11 27 th  May 2011

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Example: N balls labeled 1, 2, …, N are  placed in a box and n balls (n  N) are  randomly selected without replacement.  Define the r.v. X= largest number selected Find the probability function for X and the  c.d.f.

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Model Distributions: In the rest of the course our aim is to identify  common types  of processes or problems  and to develop  probability distributions  that represent them. Where many processes or problems tend to  have the same structure.

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For example: 1.Toss a fair coin 10 times and X records  the “number of heads obtained” 2.Plant 20 seeds and X records the “number  of seeds that germinate” 3.12 items are picked at random from a  factory line and examined for defects. X  records the “number of items with no  defects”
All these problems are essentially the  same, so what is common???

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Lecture11_updated - Lecture11 27thMay2011...

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