SOLUTION:
9 balls numbered 1 to 9, two balls are chosen at random. Find the probability that the number on both balls are odd.
5/9 * 4/8 = 5/1
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Question 236859:
9 balls numbered 1 to 9, two balls are chosen at random. Find the probability that the number on both balls are odd.
5/9 * 4/8 = 5/18
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
5 balls are odd out of 9
5C2/9C2 (number of combinations of 5 things taken 2 at a time) / (number of combinations of 9 things taken 2 at a time)
=10/36
=5/18 Probability that 2 drawn balls are odd.
.
Ed
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