Answer with explanation:
A person wants to count the number of children that play at a playground. He observes the playground for longer than one hour.
The meaning of term Randomization is by using different methods which are instantaneous,for the purpose of study.Here,outcomes may vary each time.For,example,Selecting a group of different 20 people among 100 people,more than four or five times, for case study.Other example may be, in the corner there is a water bottle and Toilet as well as Cafeteria inside a room,40 graduates are working,each having assigned certain code,To check that in 8 hours , divided in the duration of 1 hour, HR is trying to find the candidates who are working properly, so how many experts move from the seat in one hour or indulged in chatting,gossiping in an hour is randomized.
Those sentences in which "randomization is not applied"
Option (B) There is no selection process. Here,the person who is counting the number of children that play at a playground and observing the children for longer than one hour , shows that there is a Selection Process.
(D) There is no control over who is in the study.
Person is Observing the playground for more than one hour.So, He is in Control.
