$A$ family with a monthly income of $20,000$ had planned the following expenditures per month under various heads:

Heads	Expenditure (in thousand rupees)
Grocery	$4$
Rent	$5$
Education of children	$5$
Medicine	$2$
Fuel	$2$
Entertainment	$1$
Miscellaneous	$1$

Draw a bar graph for the data above.

(N/A) We draw the bar graph for this data in the following steps. Note that the unit in the second column is thousand rupees. So,'$4$' against 'Grocery' means $4000$ rupees.
$1.$ We represent the Heads (variable) on the horizontal axis,choosing any scale,since the width of the bar is not important. For clarity,we take equal widths for all bars and maintain equal gaps in between.
$2.$ We represent the expenditure (value) on the vertical axis. Since the maximum expenditure is $5000$,we can choose the scale as $1$ unit = $1000$ rupees.
$3.$ To represent our first Head,i.e.,Grocery,we draw a rectangular bar with width $1$ unit and height $4$ units.
$4.$ Similarly,other Heads are represented,leaving a gap of $1$ unit in between two consecutive bars.
Here,you can easily visualize the relative characteristics of the data at a glance,e.g.,the expenditure on education is more than double that of medical expenses. Therefore,in some ways,it serves as a better representation of data than the tabular form.