Is CUSUM a valid Scrabble word?
YES — CUSUM is a valid Scrabble word 9 points
Scrabble® and Words With Friends® points for CUSUM
CUSUM is a valid Scrabble US/CAN word worth 9 points:
C3U1S1U1M3
CUSUM is valid in Scrabble UK (World) —
C3U1S1U1M3
CUSUM is not valid in Words With Friends.