second moment

1. 1.

   the expected value of the square of the deviations of a random variable from the point of origin

   Broadermoment

   statistics

Questions about second moment

What does second moment mean?

second moment means "the expected value of the square of the deviations of a random variable from the point of origin".

Is second moment a common word?

second moment is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.