In PE class, teams are chosen by putting each student's name on a
piece of paper in a bag and drawing
names.
To test the soil in a geographical
region, five soil samples are taken
from the largest farm in the region,
For a medical study, doctors make a
list of patients. The first 10 patients
on the list are assigned to the control
group
A grocery store has a box for customer
feedback forms. Once a week, a
feedback form is drawn to give a
customer a gift voucher.
To learn more about the preferences
of its customers, a clothing store
surveys customers who use their
store-branded credit card.
Random
Nonrandom