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Mathematics 20 Online
OpenStudy (nuccioreggie):

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OpenStudy (nuccioreggie):

@Michele_Laino

OpenStudy (michele_laino):

here the proportion is 42/100, which is the experimental frequency, so the requested number of student is: 0.42*1300=...?

OpenStudy (nuccioreggie):

546

OpenStudy (michele_laino):

that's right!

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