Question

If you want to conduct a practical study that finds

Answer 1

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.

${ \boxed{ \rm{mean \: height = \frac{ \sum \: f(n)}{n} }}}$

• f of n is product of frequency and respective height bracket

• n is the number of samples.