anhphuongbbk anhphuongbbk
  • 24-10-2021
  • Mathematics
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Trong 300 người bệnh chỉ dùng thuốc A có 55% người khỏi; trong 240 người bệnh chỉ dùng thuốc B có 50% người khỏi. Với mức ý nghĩa 5% có thể nói thuốc A hiệu quả hơn thuốc B không?

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ChangEdevee
ChangEdevee ChangEdevee
  • 24-10-2021

vâng vì phụ nữ là những người tán gẫu

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