A person who enters ”Plaza las Americas” has a probability of: 0.35 of shopping at the...
Homework Answers
Let A = Buying from Zara , therefore P(A) = 0.35
B = Buying from SEARS, therefore P(B) = 0.45
a) P(Buying from Zara and buying from SEARS ) = 
Because A and B are mutually exclusive. So the probability of intersection of A and B is 0.
b) P(Buying from Zara or buying from SEARS ) = 
c) P(Do not buy from Zara and do not buy from SEARS) = 
= 
d) Do not buy from Zara or do not buy from SEARS = 
This is logical also. Because a person is do not buy from Zara means he or she is buying from the others and this is or probability so it must be equal to 1.
Where "c" upper the events for complement of that event.
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A person who enters ”Plaza las Americas” has a probability of:
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