20 points!

Which of these is an example of a non-random sample?






































Out of all the seventh grade students in a public school district, fifteen are chosen to win a trip to a vacation destination.







At a school assembly, five students are randomly chosen to receive free admission to a theme park.







Airline passengers to Orlando, Florida, are asked about vacation plans.







Registered voters in Arizona are surveyed to determine if they have relatives in Florida.


Sagot :

Airline passangers to Orlando, Florida, are asked about vacation plans. That is a non-random sample because they are targeting only airline passangers to Florida.
Airline passengers to Orlando, Florida, are asked about vacation plans is the answer.