The main value of land and buildings per acre from a sample of forms is 1200 with a standard deviation of 200 the data has a bell shaped distribution using the appeal rule determine which of the following forms whose landing building values per acre or given or unusual( more than two standard deviation from the mean). Or any other data values very unusual( more than three standard deviations from the mean)? $1040 $1741 $1015 $569 $1528 $870 Which of the farms are unusual ( more than two standard deviations from the mean