so be finite, and is supported lower &lt;= x &lt;= upper.
        </p>
<p>
          The triangular distribution may be appropriate when an assumption of a
          normal distribution is unjustified because uncertainty is caused by rounding
          and quantization from analog to digital conversion. Upper and lower limits
          are known, and the most probable value lies midway.
        </p>
<p>
          The distribution simplifies when the 'best guess' is either the lower or
          upper limit 