1. The following table represents the number of students registered for a specific course at various universities.

University
Number of Students
A
880
B
540
C
720
D
460

A sample size of 260 students must be drawn from this population of students. If a proportional random sample is taken from each strata, give the relevant sub-sample size for all the Universities

University A: (880/260) * 260 = 880

University B: (540/260) * 260 = 540
University C: (720/260) * 260 = 720
University D: (460/260) * 260 = 460

Therefore, the relevant sub-sample sizes for each university are as follows:
University A: 880
University B: 540
University C: 720
University D: 460