, because there are 4 black balls and 1 white ball which is 5 balls in total. After picking the first ball, 4 balls remain - 3 black and 1 white, so the probability of picking a white ball is 
.
Hi i am grace and i realll need on this. if you could that would be great.
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Mathematics, 24.10.2019 17:43 jademckinziemea
Hi i am grace and i realll need on this. if you could that would be great.
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