Which is the best way to obtain a random sample when surveying a high school with 800 students about what to serve in the cafeteria?

a)Only ask the 11th grade class

b)Draw a list of 50 students from a bowl with every student's name in it

c)Ask everyone who takes French class

d)Ask the first 30 students you meet in the hallway

Question

Which is the best way to obtain a random sample when surveying a high school with 800 students about what to serve in the cafeteria? 
 

a)Only ask the 11th grade class



b)Draw a list of 50 students from a bowl with every student's name in it



c)Ask everyone who takes French class



d)Ask the first 30 students you meet in the hallway

perl · Answer

which option guarantees the most random sample (ie it does not favor only a particular type of high school student).

elise_a18 · Answer

What do you think? Maybe D because it's not selecting a certain group or selection of students? :)

perl · Answer

D is bad, because what if the first 30 students you meet in the hallway are from 9th grade only?

perl · Answer

you want to represent *all* high school students using your sample

elise_a18 · Answer

k :)