1- تحديد المجموعة

1- تحديد المجموعة

النتائج (الإنجليزية) 1:

2) Stratified random sampling
The researcher divides the total number of larger workers into small groups that do not share joint funds between them, but it represents the total number of workers entirely present in a factory.
To perform this method to take a sample, there are several steps
1-

النتائج (الإنجليزية) 2:

2) Stratified random sampling
The researcher divides the total number of workers larger into small groups that do not share common funds but represent the total number of workers who are in a factory
And to do this way to take his eye, there are several steps.
1-

النتائج (الإنجليزية) 3:

2-stratified random sampling
The researchers divided the total number of workers into smaller groups that did not share the same money, but the total number of workers they represented was entirely in one factory
There are several steps.
One