At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
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 4-7 hours?
I meant individually... 0-3 hrs = how many? 4-7 hrs = how many? etc.
0-3 hrs = 20 4-7 hrs = 5 8-11 hrs = 30 12-15 hrs = 25
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. :)
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 0-3 hours) and divide it by 90 , the multiply by 100. That's your percent. :)
Oh my, what a sad song. :( Here is a happy song: http://www.youtube.com/watch?v=Ds2RrLNPAHc