

xác suất
Interactive Video
•
Mathematics
•
12th Grade
•
Practice Problem
•
Easy
Yến Nguyễn
Used 1+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức xác suất có điều kiện P(A|B) là gì?
P(A ∩ B) / P(A)
P(A ∪ B) / P(B)
P(A ∩ B) / P(B)
P(A) * P(B)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi tính xác suất có điều kiện P(A|B), không gian mẫu được hiểu như thế nào?
Không gian mẫu vẫn giữ nguyên như ban đầu.
Không gian mẫu giảm xuống chỉ còn lại biến cố A.
Không gian mẫu giảm xuống chỉ còn lại biến cố B.
Không gian mẫu là phần giao của A và B.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho hệ biến cố đầy đủ A1, A2, ..., An. Công thức xác suất đầy đủ P(B) là gì?
P(B) = P(A1) * P(B|A1) + P(A2) * P(B|A2) + ... + P(An) * P(B|An)
P(B) = P(A1) + P(A2) + ... + P(An)
P(B) = P(A1 ∪ B) + P(A2 ∪ B) + ... + P(An ∪ B)
P(B) = P(A1 ∩ B) * P(A2 ∩ B) * ... * P(An ∩ B)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho hai biến cố đối A và A-ngang. Công thức xác suất đầy đủ P(B) là gì?
P(B) = P(A) * P(B|A) + P(A-ngang) * P(B|A-ngang)
P(B) = P(A) + P(A-ngang)
P(B) = P(A) * P(A-ngang)
P(B) = P(A|B) + P(A-ngang|B)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu hướng tiếp cận phổ biến để giải bài toán xác suất có điều kiện?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
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