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Map 4 Elderly Concentration Map <br />4 � <br />$0101 AGE AND SEX <br />2005 -2013 American Community Survey 5 -Year Estimates <br />Elderly Concentra ions <br />Thematic Map of lotall Estimate; SELECTED AGE CATEGORIES - 65 years and over <br />Geography I Census Tract <br />Supporting documentation on code lists, subject definitions, data accuracy, and statistical testing can be found on the American Community Survey <br />websile in the Data and Documentation section. <br />Sample size and data quality measures (including coverage rates., allocation rates, and response rates) can be found on the American Community <br />Survey website in the Methodology section. <br />Although the American Community Survey (ACS) produces population, demographic and housing unit estimates, It is the Census Bureau's Population <br />Estimates Program that produces and disseminates the official estimates of the population for the nation, states, counties, cities and towns and <br />estimates of housing units for states and counties <br />Legend; <br />Data Classes <br />1 5.8 - 7.8 <br />O 90 -10.a <br />© <br />11.4-137 <br />. 14,8.19.1 <br />- 24.7 - 30.15 <br />Boundaries { ry"•' <br />7 <br />'13 C—ty <br />Features <br />:k <br />strea M.1.mody <br />Items in : text are not visible at This zoom level <br />141 ckrinLi <br />i <br />Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is <br />represented through the use of a margin of error_ The value shown here is the 90 percent margin of error. The margin of error can be Interpreted <br />roughly as providing a 90 percent probability [hat the interval defined by the estimate minus the margin of error and the estimate plus the margin of <br />error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to <br />nonsampling error (tor a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these <br />tables. <br />The age dependency ratio is derived by dividing the combined under -l8 and 65- and -over populall by the 18 -to -64 population and multiplying by <br />100, <br />1 of z <br />asrzzrzals <br />141Page <br />Analysis of Impediments September 2015 <br />F -6 <br />Attachment number 1 \n <br />Page 106 <br />