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1. ### In probability how do prove that P(A|B) / 1-P(A |B) = P(B|A)P(A) / P(B |Ā )P(Ā) ?

...total probability: P(B) = P(B∩A) + P(B∩Ā) Since P(A|B) = P(A∩B)/(P...

1 Answers · Science & Mathematics · 02/05/2009

2. ### This is a tough proof. I need some help?

...it's so tough. :-) Let's see what we can do... First, clearly Ā ⊃ ∩{F∈G}, since Ā is itself an element of ...

1 Answers · Science & Mathematics · 11/11/2008

3. ### Help with Boolean Algebra!?

Given: A&B = 0 A+B = 1 (A + C) & (A' + B) & (B + C) Expand and simplify: (AA' + A'C + AB + BC) & (B + C) (A'C + AB + BC...

1 Answers · Science & Mathematics · 02/10/2008

4. ### Hey guyz i have got two questions about probabilities today.?

Problem 1: P(A and E) = 0.16 P(Ā and E) = 0.32 P(A and Ē) = 0.12 P(Ā...

3 Answers · Science & Mathematics · 18/08/2008

5. ### Prove that for a vector Ā d/dt (A^2) =2Ā.dĀ/dt Hence, show that if a vector has a constant magnitude then

I am afraid that I don't understand your notation. However, Let l denote the vector's length. The components of the vector (x(t), y(t), z(t) ...) then satisfy x^2 + y^2 + z^2 + ... = l^2. The derivative of this vector is (x', y', z'...

1 Answers · Science & Mathematics · 04/08/2008

6. ### compound probability 3?

(A U ~A) = All the elements in S which are either in A or not in A. Since every element is either in A or not in A, (A U ~A) = S, and P(A U ~A) = 1...

2 Answers · Science & Mathematics · 16/05/2008

7. ### majorly confusing matrix question!?

The capital i was a typo. It should have been a vertical line. For the reduced form, it should look like [bar{A}|bar{b}]. The matrix W will be that obtained by multiplying together all the elementary matrices...

3 Answers · Science & Mathematics · 05/04/2007