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Conditional Probability

Conditional Probability

Conditional Probability:

When probabilities are quoted without specification of the sample space, it could result in ambiguity when the sample space is not self-evident. To avoid this, the sample space can be explicitly made known. The probability of an event A given sample space S, denoted by P(A|S), is nothing but the conditional probability of A given S.

Consider the probability of having the habit of smoking, say, in the whole population of a country. This is the unconditional probability "to be a smoker". The probability that a person is a smoker, given that the sex is "female" (or age is "below 14", or racial group is "white", etc.) are examples of conditional probability.

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Categorical Data Analysis
This course will teach you the analysis of contingency table data. Topics include tests for independence, comparing proportions as well as chi-square, exact methods, and treatment of ordered data. Both 2-way and 3-way tables are covered.
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