An unbiased sample is one in which every member of the group has an equal chance of being chosen.
a. true
b. false

An unbiased sample indeed is a sample where each and every group member has had an equal chance of being chosen - true. 

This is opposed to a biased sample where there were certain factors which influenced the likelihood of people being chosen into the sample. 

You got this you don’t need to use this to cheat you can do it