Mathematics, 21.01.2020 23:31 MadisonElle

In a school of 450 students, 110 of them are in the choir, 240 of them are in the band and 60 students are in the choir and the band.
find the probability that a student chosen at random is in the choir or the band or both

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In a school of 450 students, 110 of them are in the choir, 240 of them are in the band and 60 studen...