Mathematics, 18.07.2020 14:01 201889992
A box contains 6 blue balls, 4 black balls and 5 red balls at the same size . A ball is selected at random from the box and then replaced . A second ball is then selected. Find the probability of obtaining ; (i) two red balls ; (ii) two blue balls or two black balls ; (iii) one black ball and one red balls.
Answers: 2
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A box contains 6 blue balls, 4 black balls and 5 red balls at the same size . A ball is selected at...
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