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# S1 Histograms Tweet

Maths and statistics discussion, revision, exam and homework help.

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IMPORTANT: You must wait until midnight (morning exams)/4.30AM (afternoon exams) to discuss Edexcel exams and until 1pm/6pm the following day for STEP and IB exams. Please read before posting, including for rules for practical and oral exams. 28-04-2013
1. S1 Histograms
Say you have the following data:

Sales Number of Days
1-300 190
301-501 80
etc.. etc..

...and you're asked to draw a histogram. For the 1-300 class bar, the class width is 300.5-0.5. So would you draw the bar's vertical lines at 300.5 and 0.5, or carry it o to 0. I would have thought you would have kept it at 0.5, as the area is proportional to frequency, but the example in the book extends it to 0 :/

Thanks
2. S1 Histograms
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