The numbers of students in the 7 schools in a district are given below. (Note that these are already ordered from least to greatest.) 245,262,294,302,330,345,364 Suppose that the number 245 from this list changes to 259. Answer the following. \begin{tabular}{|l|l|} \hline (a) What happens to the median? & It decreases by \\ & It increases by \\ & It stays the same. \\ \hline (b) What happens to the mean? & It decreases by \\ & It increases by \\ & It stays the same. \\ \hline \end{tabular}