The Two Data Sets Are Dependent $\overline { \mathrm { d } }$

Multiple Choice

The two data sets are dependent. Find $\overline { \mathrm { d } }$ to the nearest tenth.
- $$\begin{array} { l | l l l l l l l } \mathrm { X } & 207 & 194 & 220 & 182 & 253 & 304 & 302 \\\hline \mathrm { Y } & 186 & 141 & 195 & 153 & 227 & 267 & 284\end{array}$$

A) 179.4
B) 17.9
C) 29.9
D) 38.9