Janet Jones wants to know how many of her classmates completed professional degrees after graduating in 2008.Janet obtains contact information for the graduating class of 2008 from the registrar.The list has 4000 names.After a random start,Janet contacts every eightieth graduate.What is her sampling ratio?
A)0.5 percent
B)1.25 percent
C)2.0 percent
D)4.0 percent
E)50 percent

Question

Quizplus · Accepted Answer

The sampling ratio is calculated by dividing the number of people sampled by the total population. Janet contacts every eightieth graduate, so she samples 1 out of every 80 graduates. The sampling ratio is (1/80) * 100% = 1.25%.

Janet Jones Wants to Know How Many of Her Classmates