You Want to Sell Your House, and You Decide to Obtain

You want to sell your house, and you decide to obtain an appraisal on it. Looking at past data, you discover that actual prices obtained for houses and the appraisals given for them prior to their sale were as follows:                       $\text { Actual Selling Price }$
$\begin{array}{|c|c|c|c|}\hline \text { Appraisal }&\text { Up to } \$ 500,000 & \$ 500,001 \text { or more } & \text { Row Tot } \\\hline \text { Up to \$ 500,000 }&21 & 9 &30\\\hline \text { \$ 500,001 or more}&14 & 6 &20\\\hline \text { Col Tot }&35 & 15 &50\\\hline\end{array}$ Based on these data we can say that:

A) no conclusion is possible without knowing ?.
B) appraisal and actual price are not independent at ? = .05.
C) appraisal and actual price are independent at any ?.
D) the degrees of freedom are insufficient for a decision.