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OpenStudy (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.
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OpenStudy (anonymous):
OpenStudy (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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