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08-10-2022
Mathematics

Answered

2 of 9
A school carried out a report on their Year 11 students to see the impact of doing homework
regularly on final grades achieved in maths. The results are presented in the frequency tree.
Get grade B or higher
Do homework
regularly
90
72
b
Get lower than grade B
30
Don't do
homework
regularly
How many students were sampled in the cohort?
24
Get grade B or higher
Get lower than grade B

Answer :

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