Mathematics

Mathematics, 01.04.2021 07:30, Alysssssssssssa

an urn contains 4 black balls and 6 white balls. a ball is picked at random, the colour is noted and it is replaced with two additional balls of different colours. In a pick of 3 without replacement, find the probability they the three ball are; A. all white balls. B. two white balls and one black ball. C. at least one white ball

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