In Tilton School there are 380 students in Key Stage 3 240 students in Key Stage 4 110 students in Key Stage 5 Phoebe is carrying out a survey.. She needs a sample of 100 students stratified by Key Stage. Work out the number of students from Key Stage 3 there should be in the sample.

Question
In Tilton School there are 380 students in Key Stage 3 240 students in Key Stage 4 110 students in Key Stage 5 Phoebe is carrying out a survey.. She needs a sample of 100 students stratified by Key Stage. Work out the number of students from Key Stage 3 there should be in the sample.
Answer:
In Tilton School there are 380 students in Key Stage 3 240 students in Key Stage 4 110 students in Key Stage 5 Phoebe is carrying out a survey.. She needs a sample of 100 students stratified by Key Stage. Work out the number of students from Key Stage 3 there should be in the sample. 6510567f2b6a1.webp
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algebra 11 months ago 3852