Option 1 : 3/13

\(P\left( E \right) = \frac{{{\rm{C}} + {\rm{C}} + {\rm{C}}}}{{{\rm{C}}}} = \frac{{4 + 4 + 4}}{{52}} = \frac{{12}}{{52}} = \frac{3}{{13}}\)

ALTERNATIVE METHOD:

Total Cards = 52

Number of kings in a deck = 4;

P(getting a King) = 4/52 = 1/13

Similarly, P(getting a Queen) = 1/13

P (getting a Jack) = 1/13

P (King or Queen or Jack) = 1/13 + 1/13 + 1/13 = 3/13