Question

Is it possible to obtain precise data points from a grouped frequency table? Answer in Yes/No.

Answer 1

Precise data points can not be extracted from a grouped frequency table, as it has information of ranges of data points clubbed together to form intervals.

Consider the following example of weight of a section of students: Weight Range Number of Students

$0<\text{Weight (kg)}<30$	$10$
$30\le \text{Weight (kg)}<35$	$5$
$35\le \text{Weight (kg)}<40$	$5$

This data does not provide us the information of the number of students weighing exactly $32\text{kg}$, if any.