=+3.59 ● Each observation in the following data set is the number of housing units (homes or condominiums) sold during November 1992 in a region corresponding to a particular Orange County, California, ZIP code:

25 18 16 6 26 11 29 7 5 15 12 37 35 11 16 35 20 27 17 30 10 16 28 13 26 11 12 8 9 29 0 20 30 12 45 26 21 30 18 31 0 46 47 14 13 29 11 18 10 27 5 18 67 21 35 48 42 70 43 0 30 17 35 40 61 18 17 17