hmm, alright
not necicarily in that order
probblity=desired outcomes/total possible outcomes
so
4 suits
so the first card is either a 9,10, jack, queen or king of any suit
5*4=20 (4 suits) so 20/52 is probability
now we gots to pick the same suit
now we has 4 cards out of the 51 left that we want
4/51
now we has 3/50
then 2/49
then 1/48
multiply them all together
20/52 times 4/51 times 3/50 times 2/49 times 1/48=480/311875200=1/649740
probablity is 1 in 649740 or about 0.000153% chance