When a billionaire moved to a city in another country, it instantly became one of the most prosperous regions in that country, even though its 70,000 other residents are poor. The billionaire was then worth $5.6 billion. Suppose each of the other 70,000 other residents of the city was worth $100. (a) Calculate the mean worth of a citizen of the city. (b) What does this example tell you about the use of the mean to describe an average? (a) The mean worth of a citizen of the city is $. (Round to the nearest dollar as needed.) (b) Choose the correct answer below. A. The mean of the data is always closer to the minimum data value. O B. The mean of a data set is not always an accurate portrayal of the data when there are extreme data points. O C. The mean of the data is always closer to the maximum data value. O D. The mean of a data set is always an accurate portrayal of the data