When someone/something becomes random. For instance, I would become random when I wasn't neccesarily previously random now by doing this:
gfhjasbgfhbasfbh./alkjsfkjhfjkrelahlwrekguhgaerilufraheufaherluarluehalue
dfjvhj,sdfbvjsbbhbs\dhjbhsgbfdjsdvbkfgvfdbbhfbg,vszfbvsdhjz,bjdhzz
sfgsdfgbajsfdavjfvr4barxvcevserarbfgbvfbdgwqertyuiopgfdsfghjygtfrdtyuiktgfr
1. Simple randomization 2. blocked randomization 3. stratified randomization
Yes.
What is major problem resulting from the lack of randomization in a cohort study
YES
Assignment of persons by a method based on chance
True
You don't waste time computing a pivot.
ensure taht the sample for the study is representative of the target population
true
True
yes, it is.
False