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After an economic downturn, many homes were foreclosed because the owners could not make the payments. Available below is a sample of 33 residential properti and the total balance on the mortgage at the time of foreclosure. Complete parts a through d below. Click the icon to view the table of mortgage balances a Using the 2" 2n guideline, what is the minimum number of classes that should be used to display the data in a grouped data frequency distribution? k=| | classes b. Referring to part a, what should the minimum class width be, assuming you round the width up to the nearest $1,000? c. Referring to parts a and b, develop a grouped data frequency distribution for these mortgage balance data. (Start the first class at $84,000.) Simplify your answers.) Mortgage Balance Frequency and under and under and under and under $ and under $ and under $