You are interested in identifying the relationship between access to a grocery store and the risk ofdiabetesinadultsresidinginthreetowns.Youdecidedtocollectdataontheaveragedistance of households to the nearest grocery store and the prevalence of diabetes for each of the towns. In Town A, residents live, on average, 1.2 miles from the nearest grocery store, and the prevalence of diabetes is 33%. In Town B, residents live, on average, 2.0 miles from the nearest grocery store, and the prevalence of diabetes is 17%. In Town C, residents live on average 0.8 miles from the nearest grocery store, and the prevalence of diabetes is 50%. Please answer the questions below to the best of yourability.

You decided to collect individual-level data from a random sample of adults from each town

Person	Distance from store	Diabetes
A1	2.0	Yes
A2	0.6	No
A3	1.8	Yes
A4	1.0	No
A5	0.8	No
A6	1.4	No

Person	Distance from store	Diabetes
B1	0.3	No
B2	0.2	No
B3	0.5	No
B4	3.0	No
B5	6.0	Yes
B6	2.0	No

Person	Distance from store	Diabetes
C1	0.1	No
C2	0.5	Yes
C3	0.1	No
C4	0.1	No
C5	1.8	Yes
C6	2.2	Yes

Based on individual-level data, what conclusions can you draw about the relationship between the distance to the nearest grocery store and diabetes? Assumenosamplingvariabilityoranysourcesofbias and what issue does the case above highlight about drawing conclusions about associations using aggregate versus individual-level data?