In a bar graph, the width of bars may be unequal.
In a bar graph, bars of uniform width are drawn vertically only.
In a bar graph, the gap between two consecutive bars may not be the same.
In a bar graph, each bar (rectangle) represents only one value of the numerical data.
To represent the population of different towns using a bar graph, it is convenient to take one unit length to represent one person.
Pictographs and bar graphs are pictorial representations of numerical data.
An observation occurring five times in a data is recorded as |||||, using tally marks.
In a pictograph, if a full symbol represents 50 books in a library shelf, then a half symbol represents 25 books.