Final answer:
Without the specific data on the number of sophomores who own credit cards versus the total number of sophomores, we cannot calculate the exact probability that a randomly selected sophomore owns a credit card.
Step-by-step explanation:
The question asks for the probability that a randomly selected student, who is a sophomore, owns a credit card. Probability questions like this often require data that specifies the total number of sophomores and the number of those sophomores who own a credit card. Without this specific information, we cannot calculate the exact probability. However, we can describe the general process. Typically, you would divide the number of sophomores who own a credit card by the total number of sophomores to find the probability. If using a calculator or software is permitted, you could enter the relevant frequency data to calculate the probability as requested.