Answer:
• Random sampling [ Probability and statistics method ]
Step-by-step explanation:
• This method is easier and saves time.
By probability, a person whose height is to be recorded will be chosen randomly. This will be done on approximately 40% members.
By statistical step, we'll feed results into distribution table. Then we'll find the mean height.
[tex]{ \boxed{ \rm{mean \: height = \frac{ \sum \: f(n)}{n} }}}[/tex]
• f of n is product of frequency and respective height bracket
• n is the number of samples.
