This chapter continues our discussion about basic and complex calculations you might really use. Since I introduced you to a number of techniques for building complex calculations in the last chapter, I’ll spend more time on specific uses in this chapter.
Aggregate functions are meant to get information from a number of records, related records, or repeating fields. That really makes sense when you look at the names in this group of functions:
StDev (standard deviation)
StDevP (standard deviation of population)
VarianceP (population spread)
We already used one of the aggregate functions ...