Answer:
There is a 3/7 chance for a gray kitten, a 4/7 chance for a male kitten, and a 1/7 chance for a gray male kitten.
Explanation:
Total Kittens = 7 (each of the following will be out of the total amount of kittens)
2/7 = Gray Female
1/7 = Gray Male
1/7 = Black Female
3/7 = Black Male
Total Male Kittens = 4/7
Total Gray Kittens = 3/7