Question: Census tracts are small sections within a county with long codes. North Carolina has over 2000 census tracts. As it is unreasonable for us to

Census tracts are small sections within a county with long codes. North Carolina has over 2000 census tracts. As it is unreasonable for us to work with such a large data set, we will continue to explore food insecurity at the county and zip code levels. There are 100 counties and 508 zip codes in NC.

1)Below is a random sampling of the number of supermarkets in 90 zip codes in 2012 (using all establishments). Find x? and Sx. Round to the nearest tenth.

Hint: This is a table so you can copy and paste this into excel. There is a standard deviation formula : =STDEVS(cellA1:cell?).

Census tracts are small sections within a county with long codes. North

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