Question

State any three merits of stratified random sampling

Answer 1

Merits:

(a) A random stratified sample is superior to a sample random sample because it ensures representation of all groups and thus it is more representative of the population which is being sampled.

(b) A stratified random sample can be kept small in size without losing its accuracy

(c) it is easy to administer, if the population under study is sub-divided

(d) It reduces the time and expenses in dividing the strata into geographical divisions, since the government itself had the geographical areas.