SOLUTION: A bucket contains 6 black, 4 white and 5 green balls. In how many ways can 3 balls be selected if at least 2 balls are black?

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Question 861886: A bucket contains 6 black, 4 white and 5 green balls. In how many ways can 3 balls be selected if at least 2 balls are black?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

15 balls:6 black, 4 white and 5 green balls

In how many ways can 3 balls be selected if at least 2 balls are black?





Using a calculator to find nCx+=+%28n%21%29%2Fx%21%28n+-+x%29%21%29 

for ex: TI-83 calculator,

enter 5, press MATH,

PRB, 3:nCr

ENTER.