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Find the mean weight of 70 students from the following data: Weight 50 52 54 56 58 60 62 64 No.of students 8 10 15 20 8 6 2 1 |
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Answer» 50×8+52×10+54×15+56×20+58×8+60×6+62×2+64×1=3862/70=55.17 |
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