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Discrete random variable taking four values

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Reference no: EM131960858

Suppese X is a discrete random variable taking four values : x1, x2, r3 and x4, and Y is a discrete random variable taking two values: y1 and y2. Based on the following contingency table to test whether X and Y are independent.

X1 x2 x3 x4

y1 135 23 42 56

y2 160 43 73 90

Reference no: EM131960858

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