Mathematics, 25.07.2021 14:00 croxy0514
Cho thí nghiệm ngẫu nhiên có không gian mẫu và bảng phân phối xác suất
X 0 1 2 3 4 5
P 0,1 0,2 0,1 0,4 0,1 0,1
Hãy tính xác suất:
a. A = {0,3,5}.
b. B = “Số lẻ”.
c. C = “Số lớn hơn 2”.
d. D = “Số lớn hơn 6”.
e. Tìm ModX, EX, V arX.
f. Tính P(−1 < X < 3); P(|X − EX| < 2,5); P(|X − EX| > 3,1).
Answers: 2
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Cho thí nghiệm ngẫu nhiên có không gian mẫu và bảng phân phối xác suất
X 0 1 2 3 4 5
P 0,1 0,...
P 0,1 0,...
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