Posted: March 15th, 2017
An apartment building has the following distribution of apartments:
1 bedroom 2 bedroom 3 bedroom
1st floor 3 1 1
2nd floor 2 2 2
3rd floor 1 4 1
If an apartment is selected at random, what is the probability that it is on the 2nd floor or has 2 bedrooms?
a) 7 b) 6 c) 13 D) 11
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