Mathematics
Mathematics, 29.12.2020 07:30, SkyDoki

6. A ball is selected at random from a bag containing 3 red balls, 4 black balls and 5 green balls. The
first ball is replaced and a second is selected. Find
the probability of obtaining:
(a) two red balls,
(b) two green balls.

answer
Answers: 2

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6. A ball is selected at random from a bag containing 3 red balls, 4 black balls and 5 green balls....

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