Random Sample of two main groups consisting 5 subgroups

[Rehman Najeeb]

Hi,
I would like to select random sample from my data set on following conditions

• Two sites site A=850and site B=900

age criteria for each site is given below

• **1• 20% 0-<2y
• **2• 20% 2-<5y
• **3• 20% 5-<10y
• **4• 20% 10-<15y
• **5• 20% 15-<25y

[Carlo Lazzaro]

Rehman:
see -help sample- and related examples.