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Pour éviter au maximum l'effet des variables parasites on standardise les conditions d'apparition du phénomène étudié
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- Consider data for four random variables T, U, V, W. For each variable, there are six observations (n = 6):T = (1, 3, 4, 4, 5, 8)U = (1, 1, 1, 2, 3, 4)V = (1, 2, 3, 3, 4, 5)W = (1, 2, 3, 4, 4, 4)Using the methods described in the lecture, the upper quartile for variable T is: