SOLUTION: If P(A or B) = 0.3, P(A) = 0.7 and P(B) = 0.5, determine P(A and B). ( 0.90 0.45 0.27 0.15

Algebra ->  Permutations -> SOLUTION: If P(A or B) = 0.3, P(A) = 0.7 and P(B) = 0.5, determine P(A and B). ( 0.90 0.45 0.27 0.15      Log On


   

Question 568478: If P(A or B) = 0.3, P(A) = 0.7 and P(B) = 0.5, determine
P(A and B).
( 0.90
0.45
0.27
0.15
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If P(A or B) = 0.3, P(A) = 0.7 and P(B) = 0.5, determine
P(A and B).
-----
P(A and B) = P(A) + P(B) - P(A or B)
---
= 0.7 + 0.5 - 0.3
----
= 0.9
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Cheers,
Stan H.
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( 0.90
0.45
0.27
0.15