Mathematics, 01.12.2021 02:50, Jasten

The table shows many students the Head teacher selects when doing a stratified sample by year group of 80 students. There are a total of 560 students in the schoolYear GroupSample sizeTotal no. of studentsYear 727aYear 810bYear 917cYear 1021dYear 115e

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The table shows many students the Head teacher selects when doing a stratified sample by year group...