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GURU 5G
सांख्यिकी(माध्य, माध्यक, बहुलक)माध्य- पगविचलन विधि|UP BOARD 2025 M.M. important questions|by dharmendra sir|#GURU 5G#up board 2025#class10th#class 10 math#कक्षा 10 गणित#क्लास10#upboardexam #upboard #upboard2025