Answer:
Assuming the cards are replaced after being picked
P = (4/52)*(4/52) = 1/169
(Since there are 4 kings in a standard deck of cards)
Assuming the cards are not replaced
after being picked
P = (4/52)*(3/51) = 1/221
P = (4/52)*(3/51) = 1/221in percentage 0.4525%