The sample is biased becuase Black Friday is a promotion which allowed the store to earn way much more than they usually earn. 
During Black Friday, a store earned a revenue of $80000$ dollars in one week. How much money can the store earn in a year, approximately, considering there are $52$ weeks in a year? 
Options:
4.16 million dollars 
4.17 million dollars 
4.18 million dollars 
unable to determine 