SOLUTION: 22. A train runs every 15 minutes. You arrive at the train station without consulting the train's schedule. What is the probability that you will wait more than 10 minutes for t

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Question 121805This question is from textbook McDougal Littell Pre Algebra
: 22. A train runs every 15 minutes. You arrive at the train station without consulting the train's schedule. What is the probability that you will wait more than 10 minutes for the train?
20. An event has even odds when the odds in favor of (or against) the event are 1:1, what is the probability of an event with even odds? This question is from textbook McDougal Littell Pre Algebra

Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
A train runs every 15 minutes. You arrive at the train station without consulting the train's schedule. What is the probability that you will wait more than 10 minutes for the train?
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You would have to arrive in the 5 minutes following departure of the train.
P(you arrive in those 5 minutes) = 5/15 = 1/3
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20. An event has even odds when the odds in favor of (or against) the event are 1:1, what is the probability of an event with even odds?
The probability is 1/(1+1) =1/2
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Cheers,
Stan H.