SOLUTION: if the probability of a train being on time is 3/8 and the probability of the train being early is 5/13, then what is the probability of the train being late? im so confused pls

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Question 849979: if the probability of a train being on time is 3/8 and the probability of the train being early is 5/13, then what is the probability of the train being late?
im so confused pls help

Found 2 solutions by Fombitz, ewatrrr:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
There are only three possibilities : on time, early, or late.
P%28early%29%2BP%28on_time%29%2BP%28late%29=1
%285%2F13%29%2B%283%2F8%29%2BP%28late%29=1
P%28late%29=104%2F104-40%2F104-15%2F104
P%28late%29=%28104-40-15%29%2F104
P%28late%29=49%2F104

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

P(on time + early + late) = 1

P(late) = 1+-+3%2F8+-+5%2F13+=+1+-+%2839+%2B+40%29%2F%288%2A13%29=+1+-+79%2F104+=+25%2F104=+.2404