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Based on the histogram, how many students were included in the survey? What percentage of the students surveyed babysat for at most three hours last weekend? Show your work.
 2 years ago
 2 years ago
Based on the histogram, how many students were included in the survey? What percentage of the students surveyed babysat for at most three hours last weekend? Show your work.
 2 years ago
 2 years ago

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mathteacher1729Best ResponseYou've already chosen the best response.2
Firstly, do you know how to read this kind of graph? In other words, how many students babysat for 0 to 3 hours? How many for 47 hours?
 2 years ago

mathteacher1729Best ResponseYou've already chosen the best response.2
I meant individually... 03 hrs = how many? 47 hrs = how many? etc.
 2 years ago

123FBest ResponseYou've already chosen the best response.0
03 hrs = 20 47 hrs = 5 811 hrs = 30 1215 hrs = 25
 2 years ago

mathteacher1729Best ResponseYou've already chosen the best response.2
Correct! Ok, now the next step is this: how many students were included in the survey? Well, that's easy  just add them all up. :)
 2 years ago

123FBest ResponseYou've already chosen the best response.0
http://www.youtube.com/watch?v=BbSmCrvlyrA
 2 years ago

mathteacher1729Best ResponseYou've already chosen the best response.2
You're welcome. But that's the first part of the problem. There is still one part remaining! >What percentage of the students surveyed babysat for at most three hours last weekend? That, too, should be easy. "babysat for AT MOST" three hours means only those who did 0 to 3 hrs. So take that number (the 03 hours) and divide it by 90 , the multiply by 100. That's your percent. :)
 2 years ago

mathteacher1729Best ResponseYou've already chosen the best response.2
Oh my, what a sad song. :( Here is a happy song: http://www.youtube.com/watch?v=Ds2RrLNPAHc
 2 years ago
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