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School Uniform Research

Time: 9B#5d2,4
Researcher: Pegasis

We asked 1849 students to complete a questionnaire. This is what we found out:
83% of these students are not satisfied with their uniform (1534 out of 1849 students).

Then we choose 40 different types of uniform from 13 different schools and examine if the chemical residue is in line with national standards.
We are surprised to the result that 65% of these uniforms is unqualified (26 out of 40 clothes). The worst sample's residue of methane is three times of the national standards!