Line 4:
Line 4:
[[File:BetaDistributionFourParameters.png|300 px|thumb|right|Form. 1.]]
[[File:BetaDistributionFourParameters.png|300 px|thumb|right|Form. 1.]]
This formula has two extra parameters ''a'' and ''c'', which can be used to normalise the distribution to [0,1] with ''y = (c-a)x + a''. As nutritional values always start at 0, we assume that ''a = 0''. With this we can rewrite formula 1:
This formula has two extra parameters ''a'' and ''c'', which can be used to normalise the distribution to [0,1] with ''y = (c-a)x + a''. As nutritional values always start at 0, we assume that ''a = 0''. With this we can rewrite formula 1:
+
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