Encyclopedia > Probability vector

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Probability vector

In mathematics and statistics, a Probability Vector is a vector with non-negative entries which add up to one.

Here are examples of a probability vector:

x0 = <math>

  \begin{bmatrix}
    .5 \\
    .25 \\
    .25
  \end{bmatrix}
</math>

x1 = <math>

  \begin{bmatrix}
    0 \\
    1 \\
    0
  \end{bmatrix}
</math>

x2 = <math>

  \begin{bmatrix}
    .65 \\
    .35
  \end{bmatrix}
</math>



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