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Mathematics, 04.04.2020 04:14 tyryceschnitker
A group of nine singers includes 6 altos and 3 sopranos. An instructor randomly selects one of the singers to sing the first part of a duet and a different singer to sing the second part of a duet
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A group of nine singers includes 6 altos and 3 sopranos. An instructor randomly selects one of the s...
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