Knowledge is power ,
sharing knowledge is powerful
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48
اذا كان س متغير عشوائي متقطع دالة التوزيع الاحتمالى له د حيث :
د\ \left(س\right)=\ \frac{س}{10}\ ,\ س\ \ni\left\{1.2.3.ك\right\}
} أوجد قيمة ك
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