1/4+5/12=3/12+5/12=8/12=4/6=2/3
they painted 2/3 of the fence
The sample % of these two populations would be 100/size (of student body at each school) x 100 so this would compare the two student bodies preferences for the particular type of candy bar. However, the actual % of the whole student body at each school would be a factor also. If the high school only had 200 students then this would be 50% representative but if the middle school had say 500 students this would only be 20% representative so this would have to be taken into account too. It might be more representative to have the same % of the student bodies respectively for the sample.
<span>{<span>xi</span>,...}</span><span>|3|≥x</span>something like this
No,27.93 equals <span>20.00+7.00+0.9+0.03</span>