I like, many of you went to law school to avoid doing math. The bad news is there is some very helpful information available that might require some math. Blame the Sentencing Commission. The Commission tracks and posts statistics online regarding the sentences involved in thousands of cases. And you can use that data to, for example, make an argument for a less than guideline sentence where certain courts generally follow the guidelines. After all, if the statistics support that more judges are giving lower than guideline sentences, some judges who feel bound by the guidelines may feel more comfortable giving a less than guideline sentence.
We suggest you follow the link and spend some time getting comfortable with the information and think a little how you can use those statistics to get a better plea or to support a sentencing memorandum for a particular client. Maybe math will become your friend!