what is the percentage of students whose scores lie betwen 40 and 97
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Step-by-step explanation:
Total no.ofstudents:
=15+147+157+175+167+161+149+23+6
=1000.
No. of students who got % between 40-79%:
=161+167+175+157
=660.
% of students=660/1000×100
=66%
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