Number of farms selected by probability proportionate sampling technique
1
Farms that had 100 cattle
31
13
2
Farms that had 101-250 cattle
41
17
3
Farms that had 251-500 cattle
28
11
4
Farms that had more than 500 cattle
80
33
Table 1: The total number of different categories of Holstein farms in Tehran
Province, and the selected number of farms in the respective categories, on the
basis of Probability Proportionate Sampling Technique.
