stdevp( ) appears to be mislabeled

[parisse]

Well, I seriously think stddevs could also be confusing, perhaps not for you but for someone else, while stddevpfroms is not, it's not that large (on the Prime, you will probably get it from the catalog or with help completion and on Xcas you have tab completion). Moreover stddevp will remain a natural short synonym, at least in Xcas.