Yes, TYPICAL is a Scrabble word!

Letter values in Scrabble US: T 1, Y 4, P 3, I 1, C 3, A 1, L 1.

Is it a valid word?

TYPICAL is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

exhibiting the qualities or characteristics that identify a group or kind or category
of a feature that helps to distinguish a person or thing
conforming to a type