please help
I am not to sure the possibility could be the word dig or and odd number that is all maybe you can use that edvice that is all I have to say sorry!
P ( card contains letter in word HEAD or multiple of 3 ) =
P(card contains letter in word head) + P ( card is a multiple of 3) - P( card contains letter in word HEAD and is a multiple of 3) =
(4 / 20 ) + ( 3 / 20 ) - (0) =
7 / 20
-11 
