Because histograms show grouped data which is used for grouping certain things that people need. Also it is because it is easier to figure out the grouped data otherwise you would have to draw in at least 5 BAR GRAPHS.
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not really now if the bars were touching it would be a histogram which compares ranges
a bar graph the bars are seperated a histogram the bars are not seperated
A histogram does not have gaps in between the bars because the intervals are connected i.e. 0-99, 100-199, 200-299.
A histogram is when the bars are touching and it graphs what you have on your frequency table.
Oh, dude, it's like this: a histogram is like a bar graph that shows the frequency of data within specific intervals, while a frequency polygon is a line graph that connects the midpoints of the intervals in a histogram. So, it's like the difference between drawing bars and connecting dots. Cool, right?