Question 1042963: A lottery games has balls numbered 1-13. What is the probability of selecting an even numbered ball or a 4?
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! 1,2,3,4,5,6,7,8,9,10,11,12,13
There are 6 even numbers in that list above (2,4,6,8,10,12). Since selecting a 4 is a subset of the event of selecting an even number, we just need to worry about the even numbers.
There are 6 ways to select a ball we want out of 13 ways total. Therefore, the probability as a fraction is 6/13. The probability as a decimal is 0.461538 (use a calculator to compute 6/13 = 0.461538). This decimal value is approximate.
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