Conditional Probability - Statistical Independence

Statistical Independence

Events and are defined to be statistically independent if:

.

That is, the occurrence of does not affect the probability of, and vice versa. Although the derived forms may seem more intuitive, they are not the preferred definition as the conditional probabilities may be undefined if or are 0, and the preferred definition is symmetrical in and .

Read more about this topic:  Conditional Probability

Famous quotes containing the word independence:

    There is no dignity quite so impressive, and no independence quite so important, as living within your means.
    Calvin Coolidge (1872–1933)