Classical Probability and the Principle of Indifference

Classical Probability and the Principle

of Indifference

Philosophy of Probability

April 22nd, 2013

Review

Review:

What is the informal interpretation of a ¡°sample space¡± ??

Review

Review:

What is the informal interpretation of a ¡°sample space¡± ??

What is an algebra? What is an event?

Review

Review:

What is the informal interpretation of a ¡°sample space¡± ??

What is an algebra? What is an event?

In Kolmogorov¡¯s axiomatization, what properties does a

probability measure satisfy?

Algebras

Define an algebra E to be a collection of subsets of ? satisfying

the following properties.

If A is a member of E, then so is its complement Ac .

If A and B are members of E, then so is their union A ¡È B.

The empty set ? = {} is a member of E.

The members of an algebra will be called events.

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