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Yes, I understand this .. thanks Bob..
hi Tina123 Thus the area of each histogram bar is proportional to the recorded frequencies. The histogram below shows varying range sizes rather well. It comes from: http://www.bbc.co.uk/schools/gcsebitesi … rev3.shtml If it would help I will make up another example to show the correct use of a histogram. Bob
How can we define histogram mathematically? 