6. Use the following table to answer parts a) and b). Income ($1000s) Midpoint Cumulative Frequency Frequency 0-25 12.5 6 6 25-50 37.5 24 30 50-75 62.5 34 64 75-100 87.5 33 97 00-125 112.5 15 112 125-150 137.5 13 125 150-175 162.5 12 137 175-200 187.5 6 143 200-225 212.5 0 143 225-250 237.5 144 250-275 262.5 0 144 275-300 287.5 148 NA 300-325 312.5 150 The estimate for the mean is 97 = $97, 000. a) i) Now estimate the median and modal (mode) family incomes. i) Based on the given estimate for the mean and your estimate for the median, describe the skewness (positive, negative, or symmetric) of the data and briefly justify/explain your choice. b) Determine the interquartile range (IQR) and then determine if there are any outliers