Let A and B be two non-null events such that A ⊂ B. Then, which of the following statements is always correct? |
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(a) |
P(A | B) = P(B) − P(A) |
(b) |
P(A|B) ≤ P(A) |
(c) |
P(A|B) ≥ P(A) |
(d) |
P(A |B) = 1 |
Let A and B be two non-null events such that A ⊂ B. Then, which of the following statements is always correct? |
|||
(a) |
P(A | B) = P(B) − P(A) |
(b) |
P(A|B) ≤ P(A) |
(c) |
P(A|B) ≥ P(A) |
(d) |
P(A |B) = 1 |
A ⊂ B; so A ∩ B = A
Now, P
⇒ P
P(B) ≤ 1
So, P ≥ P(A)