This is found in p. 120 of the GMAT Review OG 11th edition.
P(A) = 0.23 and P(C) = 0.85
The book then jumps to the following conclusions.
1. We cannot determine P(A or C) and P(A and C)
2. 0.85 < P (A or C) < 1 [all inclusive]
3. 0.08 < P (A and C) < 0.23 [ all inclusive]
Can someone please explain to me how the book arrived at these conclusions?
The book says that P(A) + P(C) = 1.08, which is greater than 1, and therefore cannot equal P(A or C). Why is that?
The book then says following that P (A and C) > 0.08 inclusive.
Anyways just very confused. Would appreciate any help. Thanks.
P(A) = 0.23 and P(C) = 0.85
The book then jumps to the following conclusions.
1. We cannot determine P(A or C) and P(A and C)
2. 0.85 < P (A or C) < 1 [all inclusive]
3. 0.08 < P (A and C) < 0.23 [ all inclusive]
Can someone please explain to me how the book arrived at these conclusions?
The book says that P(A) + P(C) = 1.08, which is greater than 1, and therefore cannot equal P(A or C). Why is that?
The book then says following that P (A and C) > 0.08 inclusive.
Anyways just very confused. Would appreciate any help. Thanks.
