Question

When bar graphs are put together in the form of ranges, we obtain a pictorial representation known as .

Answer 1

When bar graphs are put together in the form of ranges, we obtain a pictorial representation histogram .

The following bar graph shows the data of age of boys of different ages:

When the data is clubbed to form groups of data for the age $0-10$ years, $10-20$ years, and $20-30 years the following grouped frequency table is obtained: Age Groups Number of Boys

$0\le \text{Age}<10$	$50$
$10\le \text{Age}<20$	$60+45=105$
$20\le \text{Age}<30$	$40$

The corresponding histogram is as follows: