You pick a card at random, put it back, and then pick another card at random.
3
4
5
6
What is the probability of picking a 3 and then picking a 6?
The probability of picking a 3 on the first draw is 1/4. The probability of picking a 6 on the second draw is also 1/4. Since these events are independent, we can multiply their probabilities to find the probability of both events occurring.
Probability of picking a 3 and then a 6 = (1/4) x (1/4) = 1/16
Therefore, the probability of picking a 3 and then picking a 6 is 1/16.