4 students out of 28 gained a grade of 5. Students are chosen at random until a student chosen has a grade of 5. Find the probability that t

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4 students out of 28 gained a grade of 5. Students are chosen at random until a student chosen has a grade of 5. Find the probability that t

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4 students out of 28 gained a grade of 5. Students are chosen at random until a student chosen has a grade of 5. Find the probability that this is the third student chosen.

Guest Mar 6, 2015

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$\frac{24}{28}\times\frac{23}{27}\times\frac{4}{26}$

ask questions if you do not understand. :)

Melody Mar 7, 2015

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Melody · Answer 1 · 2015-03-07T04:10:18

$\frac{24}{28}\times\frac{23}{27}\times\frac{4}{26}$

ask questions if you do not understand. :)

4 students out of 28 gained a grade of 5. Students are chosen at random until a student chosen has a grade of 5. Find the probability that t

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