Can someone help me please? MATH
posted by Jen on .
Identify the sampling technique used to obtain this sample:
Each person boarding a plane is asked to flip a coin; those showing “tails” have their luggage searched.

Isn't that a simple random sampling?
http://en.wikipedia.org/wiki/Sampling_(statistics)#Simple_random_sampling 
hmmmmm i guess it is....thank u :)