Question

The following table gives the frequencies of most commonly used letters a,e,I,o,r,t,u, from a page of a book

Represent the information above by a bar graph.

Answer 1

We draw bar graph of this data in the followng steps.
Step I We represent the letters (variables) on the horizontal axis choosing any scale, as the width of the bar is not important. But for clarity, we take equal widths for all bars and maintain equal gaps in between them. Let one letter be represented by one unit.
Step II. We represent the letters on the vertical axis, Since, the maximum frequency is 125, we can choose the scale as 1 unit = 15 frequency.
Step III To represent our first letter, i.e., a, we draw a rectangular bar with width 1 unit and height 5 units.
Step IV Similarly, other heads are represented by leaving a gap of `1/2` unit in between two consecutive bars.