You want to know how many students ride the bus to school. Identify each type of sample below and tell whether it is biased or unbiased.

Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.

	Type of Sample	Biased or Unbiased
You ask every third student that enters the lunch room.
The students are separated into different rooms before they are dismissed. You survey everyone in room 101.

random sample

self-selected sample

systematic sample

stratified sample

cluster sample

convenience sample

biased

unbiased