3 balls are randomly selected from a bag containing 3 white balls and 5 black balls.
A) how many ways are there to choose the 3 balls?
B) how many ways are there to choose exactly 2 white balls?
C) what is the probability that there are exactly 2 white balls?
Pls explain how to do it
A) how many ways are there to choose the 3 balls?
B) how many ways are there to choose exactly 2 white balls?
C) what is the probability that there are exactly 2 white balls?
Pls explain how to do it
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A. 8c3 = 8!/3!5! = 56 <-------
B. 3c2*5c1 = 15 <-------
C. Pr = favorable outcomes / total outcomes =15/56 <-------
B. 3c2*5c1 = 15 <-------
C. Pr = favorable outcomes / total outcomes =15/56 <-------