Xác suất thống kê

thay Lam Son: https://www.facebook.com/groups/217080675117689/permalink/234739223351834/?stream_ref=2
         https://www.facebook.com/groups/217080675117689/permalink/281817281977361/?stream_ref=2
thay Minh: https://www.facebook.com/groups/217080675117689/permalink/259374024221687/?stream_ref=2
           https://www.facebook.com/groups/217080675117689/permalink/258986520927104/?stream_ref=2
thay Mai: https://www.facebook.com/groups/217080675117689/permalink/258988577593565/?stream_ref=2
co Binh: https://www.facebook.com/groups/217080675117689/permalink/259013870924369/?stream_ref=2
         https://www.facebook.com/groups/217080675117689/permalink/258559064303183/?stream_ref=2
co Huong Sac: https://www.facebook.com/groups/217080675117689/permalink/258782204280869/?stream_ref=2
thay Quang: https://www.facebook.com/groups/217080675117689/permalink/258680834291006/?stream_ref=2
            https://www.facebook.com/groups/217080675117689/permalink/292165954275827/?stream_ref=2
thay Hieu: https://www.facebook.com/groups/217080675117689/permalink/270388989786857/?stream_ref=2
update:
Tổng hợp đề gk và cuối kỳ: https://www.facebook.com/groups/522880067816510/permalink/866500090121171/
cô Bình: https://www.facebook.com/groups/522880067816510/permalink/826108500826997/
thày Quang: https://www.facebook.com/groups/522880067816510/permalink/827789457325568/
gk cô Hương: https://www.facebook.com/groups/522880067816510/permalink/861484797289367/