Solution: Because the cards are 5 odd and 4 even, as long as one of them is even, then their product is even.

So, a * * * has the following situation:

(1) 1 odd 1 even: 12, 14, 16, 18, 32, 34, 36, 38, 52

94,96,98, 5*4=20 species in total.

(2)2 pairs: 24, 26, 28, 46, 48, 68, totally 6 kinds;

Because it has 1+2+3+4+5+6+7+8=36 cases,

So its probability p is 26/36= 13/ 18.