Whats a histogram?
It's a type of graphic, used in math...
A histogram is a representation of a frequency distribution by means of rectangles. The widths of these rectangles represent class intervals and their areas are proportional to the corresponding frequencies.
A diagram consisting of rectangles whose area is proportional to the frequency of a variable and whose width is equal to the class interval.
its like a bar graph but there is no space inbetween the bars