A box contains 9 balls numbered 1 to 9. A ball is taken at random from the box.
Find the probability that the ball has an even number.
Find the probability that the ball has an even number.
number of successes
---------------------------- = Probability
number of possibilities
The balls are: 1,2,3,4,5,6,7,8,9
Successes (evens) are: 2,4,6,8 {that's four total}
Probability of drawing an even is 4/9
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