1 thùng hàng có 15 sp trong đó có 5 phế phẩm đang chờ kiểm tra. lấy ngẫu nhiên từ 1 thùng hàng 3 sản phẩm nếu cả 3 đều là chính hãng thì thùng đó được nhập kho. tính xác xuất để thùng hàng trên được nhập kho

The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.