<p>Here is a link to all the UC data you could ever want…</p>
<p>[University</a> of California Office of the President](<a href=“http://www.ucop.edu/news/studstaff.html]University”>http://www.ucop.edu/news/studstaff.html)</p>
<p>And YES, major matters. I am not familiar with the particular areas of interest to the OP. I can tell you the following: S applied for a major with an acceptance rate between 8% and 11% for 2013. The overall acceptance for his particular UC published in this chart is 39%.</p>
<p>So yes, major matters.</p>