People are separated into groups, from each group people are selected randomly. What type of sampling is this -

People are separated into groups, from
each group people are selected randomly.
What type of sampling is this -
a) Simple random
b) Stratified random
c) Systemic random
d) Cluster
Correct Answer - B
Ans. is ‘b’ i.e., Stratified random
o Separation of people in groups followed by random sampling from
those groups is stratified random sampling