3 نقطة (نقاط) السؤال 18 Let X be the random variable of the normal distribution with mean (u) and standard .deviation (o

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3 نقطة (نقاط) السؤال 18 Let X be the random variable of the normal distribution with mean (u) and standard .deviation (o) = (3 + ر > X> ر )If P = 0.37900 then standard =deviation (0) *اكتب الناتج لاقراب (4) خانات عشرية 1.2345