Question

Given below are the ages of $45$ people in a colony.
$338725312655025485633282215625916141924$$3526912461542633252211422352486210244351374836$

Construct grouped frequency distribution for the given data with $6$ class intervals.

Answer 1

$\Rightarrow$ In given data minimum value is $5$ and maximum value is $63$

$\Rightarrow$ Range $=63-5=58$

$\Rightarrow$ Number of class interval $=6$ class interval (Average)

$\Rightarrow$ Length of the class interval $=\frac{58}{6}=9.6\approx 10$

$Class-interval$	$Frequency$
$0-9$	$5$
$10-19$	$8$
$20-29$	$10$
$30-39$	$7$
$40-49$	$7$
$50-59$	$5$
$60-69$	$3$
$Total$	$45$