Histogram:
A histogram is a graph of a dataset, composed of a series of rectangles. The width of these rectangles is proportional to the range of values in a class or bin, all bins being the same width. For example, values lying between 1 and 3, between 3 and 5, etc. The height of the rectangles is proportional to the frequency or the relative frequency of that class. For example the height of the bar centered at 2 is determined by the number of values in the class from 1-3.
Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.
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