Final answer:
The probability that the shoes Tami buys are beige is 1/3.
Step-by-step explanation:
To find the probability that the shoes Tami buys are beige, we need to consider the different combinations of shoe options. There are a total of 3 * 2 * 2 = 12 possible combinations of shoes. Out of these 12 combinations, 4 of them have beige shoes (either light or dark beige). Therefore, the probability that the shoes Tami buys are beige is 4/12, which can be simplified to 1/3.