Mathematics · Probability

A box contains 4 white and 3 black balls. A man picks up 2 balls at random. What is the probability of both balls being of the same colour?

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A box contains 4 white and 3 black balls. A man picks up 2 balls at random. What is the probability of both balls being of the same colour?

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A box contains 4 white and 3 black balls. A man picks up 2 balls at random. What is the probability of both balls being of the same colour?

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