Final answer:
By multiplying the number of shirts, skirts, and shoes that Jennifer has, we find that there are 200 possible outfits she can create using the fundamental counting principle in combinatorics.
Step-by-step explanation:
To determine how many possible complete outfits Jennifer can create, you multiply the number of shirts, skirts, and pairs of shoes she has. Jennifer has ten shirts, five skirts, and four pairs of shoes. The number of outfits is therefore the product of these three numbers.
So, calculating the number of possible outfits:
10 shirts × 5 skirts × 4 pairs of shoes = 200 possible outfits.
Each shirt can be paired with each skirt, and each resulting combination can be worn with each pair of shoes. This is called the fundamental counting principle in combinatorics, which is a foundational concept in probability and statistics within mathematics.