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Guest Message by DevFuse


Member Since 07 May 2013
Offline Last Active May 08 2013 02:16 PM

Topics I've Started

graphs and statistics

07 May 2013 - 02:05 PM

Hello users of brainden, I got to know this site from one of my friends said that you guys helped him solve a problem he was stuck on. Well, there is this one problem I have been trying to solve for hours right now, and I can't seem to get the answer to it. Would you mind helping?
The grouped frequency table shows the amount ($A) spent on travel by a number of students. A student drew a histogram to represent this data. The area of the rectangle representing the 0<A≤10 group was equal to the sum of the areas of the other two rectangles. 
Explain why m + n = 15.
Table 1