1) identify whether variable is categorical or numerical
the company where a person works
answer: categorical
2) at each building on campus a polister asks just the first students who enters the building " did you drive to campus?" the pollister uses the data to predict the number of all the college's students who drive to campus.
identify the bias
a. responsive bias because individuals refused to be part of the study,
b. non responsive bias because the surveyed peoples answer may not match with what they really think
c. non responsive bias because individuals identified to be in the sample could not be found
d. sampling bias because individuals refused to be part of the study
e. responsive bias because individuals identified to be in sample could not be found
f, sampling bias because the sampling techniques favors one group of individual over another,
answer: b and f
5 answers
2. only one answer possible