Posted: December 2nd, 2015
Mathematics
Mathematics
The table shows information about 1065 students
male female
year 7 126 109
year 8 112 134
year 9 121 114
year 10 87 94
year 11 88 80
Elena takes a stratified sample of 120 students by year group and by gender.
work out the number of year 8 female students in her sample
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