Each adjustment changes the characteristics of the probability distribution. For example, the truncated normal distribution in Figure 130, Truncated distribution example will no longer have an actual mean of $100,000 and standard deviation of $15,000. Also, statistics values will be approximate for truncated distributions.
When using alternate percentile parameters, the actual percentiles calculated for a truncated distribution will differ from the specified parameter values. For example, a normal distribution specified with 10th/90th percentiles and truncated on either side of the distribution will have actual 10th/90th percentiles greater or less than the specified percentiles.
Showing the mean line of the distribution is useful when truncating distributions. However, the mean line value might differ from the Mean parameter field. The mean line shows the actual mean of the truncated distribution while the Mean parameter field shows the mean of the complete distribution.