How to use stratified sampling

3minutemaths
3minutemaths
200.5 هزار بار بازدید - 12 سال پیش - How to use stratified sampling
How to use stratified sampling - this is based on a grade 5 GCSE question:

"Andrew is going to carry out a survey of these students. He uses a sample of 50 students, stratified by year group and gender. Work out the number of Year 13 girls that should be in the sample."

I hope this helps and please add any comments below - thanks!

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12 سال پیش در تاریخ 1391/12/04 منتشر شده است.
200,595 بـار بازدید شده
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