Mathematics, 04.12.2019 00:31 TheVariableWhoLived

One of two small classrooms is chosen at random with equally likely probability, and then a student is chosen at random from the chosen classroom.
classroom #1 has 5 boys and 13 girls.
classroom #2 has 14 boys and 9 girls.

what is the probability that classroom #2 was chosen at random, given that a girl was chosen?

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One of two small classrooms is chosen at random with equally likely probability, and then a student...