ta.html"><a href="working-with-data.html#suggested-readings-1"><i class="fa fa-check"></i><b>2.5</b> Suggested readings</a></li>
<li class="chapter" data-level="2.6" data-path="working-with-data.html"><a href="working-with-data.html#appendix"><i class="fa fa-check"></i><b>2.6</b> Appendix</a>
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<li class="chapter" data-level="2.6.1" data-path="working-with-data.html"><a href="working-with-data.html#scales-of-measurement"><i class="fa fa-check"></i><b>2.6.1</b> Scales of measurement</a></li>
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