Acard is drawn at random from a well-shuffled deck of playing cards. what is the probability that the card drawn shows a number from 4 to 9 (inclusive of these two numbers)?

Givens
You have 4 suits in a deck of cards
There are 13 cards in each suit.
You draw a card that is one of 4, 5, 6, 7, 8, 9   There are six cards in each suit that will bring you success.

Formula
Number of cards in a deck = 4 * 13.
Number of cards that are a success = 4*6

P(4 - 9) = 4 * 6 / 4 * 13 = 6/13 = 0.4615 

Answer
P(4_9) = 0.4615 

If you have choices, please list them.