mathematical expectation

24 LETTERS · STARTS WITH M

mathematical expectation is a valid 24-letter word worth 43 points in Scrabble and 49 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

M3A1T1H4E1M3A1T1I1C3A1L1E1X8P3E1C3T1A1T1I1O1N1

3 + 1 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 8 + 3 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =43 PTS

DOUBLE WORD → 86TRIPLE WORD → 129

MEANING

What does mathematical expectation mean?