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Need help with these two questions. I do not have a special calculator.

Need help with these two questions. I do not have a special calculator.-example-1
User Dannielle
by
5.7k points

2 Answers

4 votes

Answer:

1 is 25/102

2 is 455


Explanation:


User Bob Ebert
by
5.6k points
3 votes
19 . Prob( 2 reds) = 1/2 * 25/51 = 25/102

20. This would be 15C12 = 15C3 = (15*14*13) / (3*2*1) = 455