title: Distintcount with multiple conflicting filters
body: <p>I have a large table with students test results, and I've been trying to find a way to make a  DISTINCTCOUNT measure from two differents tests, but I've completely failed and have found no help from searching. </p>
  
  <p>Heres an example table:
  <a href="https://i.stack.imgur.com/XmmFO.png" rel="nofollow noreferrer">Example table</a></p>
  
  <p>The measures that I am using and are working:</p>
  
  <pre><code>Number of students = DISTINCTCOUNT('FACT'[StudentID])
  
      Student below par T10 = CALCULATE([Number of students];'FACT'[TestID]="T10";'FACT'[Result]&lt;4)
  
      Student below par T11 = CALCULATE([Number of students];'FACT'[TestID]="T11";'FACT'[Result]&lt;12)
  </code></pre>
  
  <p>I am trying to make a DISTINCTCOUNT that counts distinct students from below par T10 AND below par T11. Expected result with the test data set is 2, or 1 for students bb and ff. I tried using CALCULATE with &amp;&amp;, but didn't work.</p>