Mathematics, 11.05.2021 23:40 lemieuxsamhya

There are 900 students at the school. 132 are in year 11. If the Headteacher carries out a stratified sample of 150 students how many of these should be from year 11?

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There are 900 students at the school. 132 are in year 11. If the Headteacher carries out a stratifi...

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