An index number provides a simple way to compare measurements made at different times or in different places The Cost of Living Index COLI is an index number used to compare expenses from one town or geographic region to another It is based on housing utilities grocery items transportation health care and miscellaneous goods and services 100 represent the national average The data sets below include the COLI rounded to the nearest whole number of four samples of six cities grouped by geographic region Which region has the least variation or spread Select the correct answer below Cost of Living Index Numbers COLI 119 82 101 100 75 73 77 79 67 72 58 65 96 64 80 73 64 66 75 78 76 71 70 65 Northeast Midwest West South E