The table to the right gives the cost of living index (COLI) for six East Coast counties and six Midwest counties (using an index where 100 represents the average cost of living for all participating cities with a population of more than 1.5 million). Answer parts (a).

\begin{tabular}{|c|c|c|c|}
\hline
& East Coast Counties & \multicolumn{2}{|c|}{Midwest Counties} \\
\hline
A & 104.9 & U & 96.5 \\
\hline
B & 128.4 & V & 92.1 \\
\hline
C & 314.9 & W & 94.7 \\
\hline
D & 134.1 & X & 87.6 \\
\hline
E & 123.9 & Y & 95.3 \\
\hline
F & 141.8 & Z & 228.7 \\
\hline
\end{tabular}



Answer :

Let's look at the cost of living index (COLI) provided in the table for both the East Coast counties and the Midwest counties.

### East Coast Counties:
Here are the COLI values for the East Coast counties:
- County A: 104.9
- County E: 128.4
- County C: 314.9
- County D: 134.1
- County E: 123.9
- County F: 141.8

### Midwest Counties:
Here are the COLI values for the Midwest counties:
- County U: 96.5
- County V: 92.1
- County W: 94.7
- County X: 87.6
- County Y: 95.3
- County Z: 228.7

Let's put all the values together for a better understanding:
- East Coast Counties: 104.9, 128.4, 314.9, 134.1, 123.9, 141.8.
- Midwest Counties: 96.5, 92.1, 94.7, 87.6, 95.3, 228.7.

With this information, you can now compare the cost of living indices across these counties based on the provided data. Calculations such as averages, medians, and other statistical measures can help gain further insights, but for now, the provided values reflect individual cost of living indices for each specified county.