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Mathematics, 20.06.2021 21:10 spicee68003
Có ba người cùng thi bắn súng mỗi người bắn một viên xác suất bắn trúng mục tiêu của từng người là 0,7 0,8 và 0,9 tính xác suất để có không quá 2 người bắn trúng
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Có ba người cùng thi bắn súng mỗi người bắn một viên xác suất bắn trúng mục tiêu của từng người là 0...
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