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Graph alt text 6

Bar graph of the probability function, with values of X (0, 1, 2, 3) along the horizontal (x) axis and probabilities (0.0, 0.1, 0.2, 0.3, 0.4) along the vertical (y) axis. Probabilities are shown as discrete columns at each value of X, such that there is a vertical line at X = 0 with height of 0.1, a line at X = 1 with height of 0.2, a line at X = 2 with height of 0.4, and a line at X = 3 with height 0.3. Mean µ is labelled at X = 1.9, and standard deviation σ is shown by a double-headed arrow extending horizontally from X = 0.96 (1.9 – 0.94) to X = 2.84 (1.9 + 0.94).

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Last updated August 31, 2010

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