Number of extracurricular activities

<p>Yes, I've heard quality's more important than quantity. But in this <a href="http://talk.collegeconfidential.com/harvard-university/681434-official-harvard-university-2013-decisions-thread-7.html%5B/url%5D"&gt;http://talk.collegeconfidential.com/harvard-university/681434-official-harvard-university-2013-decisions-thread-7.html&lt;/a> thread I've hardly seen anyone with only 1 or two EC gets accepted.
What should be the range of extracurricular activities in order to stop my overthinking and worrying?</p>

<p>My daughter, who will be an incoming freshman at Harvard, had 3 extracurriculars – theater/musical theatre (9 productions), chorus (4 years), and cheerleading (2 years).</p>

<p>do things like mathletics and science olympiad count as ECs</p>