Answer:
[tex]\dfrac{12}{51}\cong\dfrac{4}{17}[/tex]
Step-by-step explanation:
You have 52 cards in a deck and 13 cards of each suit.
The probability of picking a diamond in a complete deck of cards is:
[tex]\dfrac {13}{52}[/tex]
Or the probability is 13 put of 52.
Since you took out 1 diamond card already there would be only 51 cards left and 12 diamond cards left. So you would have a probability of:
[tex]\dfrac{12}{51}[/tex]
If we simplify it you will have a probability of:
[tex]\dfrac{4}{17}[/tex]