To obtain the national CPI, the BLS collects samples from thirty-seven local areas in four different regions. For each of these local areas in which data is collected, the BLS creates a local CPI. One of the local areas is around the metropolis of Chicago. The margin of error for CPI estimates for the Chicago area is much larger than the margin of error for the national CPI. Identify the primary reason for this.

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.