Derp9066 Derp9066

11-05-2018
Mathematics

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Four girls and eight boys are running for president or vice president of the student council. find each probability: find the prbability that two girls are elected

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MsEHolt MsEHolt

22-05-2018

The probability is 1/11.

The probability that a girl is elected for one office is 4/12, since there are 4 girls out of 12 students.

The probability that a girl is elected for the second office is 3/11. This is because after one girl is elected, there are 3 girls left out of 11 students left.

Together, this gives us
4/12(3/11) = 12/132 = 1/11

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