We can find the answer by using the formula:
Probability = Number of successful events / Number of total events
In this case, the probability of 2 events to be successful is:
Total probability = Probability 1 * Probability 2
A. 1st case
We know that there are 10 clubs in a card, therefore:
Total probability = (10/52) * (9/51)
Total probability = 0.0339 = 3.40%
B. 2nd case
Replacement of the drawn card is made, therefore:
Total probability = (10/52) * (10/52)
Total probability = 0.03698 = 3.70%
