SOLUTION: A bag contains 7 white 5 black and 4 red balls. If 2 balls are drawn at random. What is probability of selecting 1.both the balls are white 2.one is black and other is red

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Question 1109135: A bag contains 7 white 5 black and 4 red balls. If 2 balls are drawn at random.
What is probability of selecting
1.both the balls are white
2.one is black and other is red

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
1. Without replacement,

With replacement,

.
.
2. Without replacement,

With replacement,

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