Thursday Morning Riddle

I’m an average of terms, to a math statistician;
When you’re using a word to convey definition;
I am nasty and spiteful in my disposition;
But a term of respect for a skillful musician.

Who am I?

UPDATE: Riddle solved by Annalisa. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Annalisa Says:

    Mean!

    Mean value
    What I mean when I say something
    Mean person
    He’s a mean guitar player

  2. Bill Says:

    MEAN is correct. Way to go, Annalisa!

    Nice summary, too.

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