It’s pretty rare that a pollster calls his own survey an “outlier.” But that’s exactly what happened last week after a Monmouth University poll showed an approximate three-way tie between Bernie ...

An outlier is an observation that lies an abnormal distance from other values in a random sample from a population,” advises the Engineering Statistics Handbook. One of the standard approaches is to ...

Earlier this week, the Democratic race for president was seemingly rocked by a Monmouth University poll showing former Vice President Joe Biden falling from 32% to 19%. The poll, which had Biden in a ...