anonymous
  • anonymous
Below are the survey results of 60 students out of 1250 students in a school. These results are representative of the school population. number answering yes Do you work on weekends 31 Do you spend 2 or more 36 hours per nigh on hw? Do you buy lunch in the cafeteria? 48 Predict the number of students in the school who work on the weekends Predict the number of students in the school who buy lunch in the school cafeteria
Algebra
katieb
  • katieb
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anonymous
  • anonymous
phi
  • phi
you could use ratios # working on weekends / total in sample = # working on weekends in whole school/# in school \[ \frac{ 31}{60}= \frac{x}{1250} \] solve for x by multiplying both sides by 1250 and simplifying use that same idea (but different numbers) for part B

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