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Mathematics, 02.06.2021 03:40 mia3128
in a class of 55 students, some study at least one of the following subjects; statistics, economics and English. 20 study none of them. The following gives further details of the subjects studied. statistics only 4, economics only 5, English only 7, all three subjects 3, statistics and English 7, economics and English 8
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in a class of 55 students, some study at least one of the following subjects; statistics, economics...
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