Final answer:
The probability of selecting a shirt and a top sequentially is 1/3.
Step-by-step explanation:
The probability of selecting a shirt and a top, one choice after another, can be found by multiplying the probabilities of each choice. In this case, there are 2 skirts and 1 shirt. So, for the first choice, the probability of selecting a skirt is 2/3 (2 skirts out of 3 total shirt and skirts). After selecting a skirt, there will be only 1 skirt and 1 shirt left, so the probability of selecting a shirt as the second choice is 1/2. Multiplying these probabilities together, the probability of selecting a skirt and a shirt consecutively is (2/3) * (1/2) = 1/3.