anonymous
  • anonymous
Based on the histogram, how many students were included in the survey? What percentage of the students surveyed babysat for at least four hours last weekend? Show your work.
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
add amount of students from all four parts. 15+10+20+15=60 60 students participated at least four 10 + 20 + 15 = 45 (4~7)(8~11)(12~15) 45/60=3/4=75%

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