<image>In a middle school track and field competition, based on the performance (unit: m) of the athletes in the boys' high jump preliminaries, the following statistical charts ① and ② were drawn. Please use the relevant information to answer the following questions: 

(1) The value of \(a\) in Chart ① is;

(2) Calculate the mean, mode, and median of the preliminary performance data from this group;

(3) Based on this preliminary performance data, determine the top 9 athletes who will advance to the semifinals from highest to lowest. Can the athlete with a preliminary performance of 1.65m advance to the semifinals?