Final answer:
To find the probability that the next customer will pay cash or a credit card, we add the number of customers who paid cash and the number of customers who used a credit card, and divide by the total number of customers. The probability is approximately 69%.
Step-by-step explanation:
To find the probability that the next customer will pay cash or a credit card, we need to add the number of customers who paid cash and the number of customers who used a credit card, and then divide that total by the total number of customers.
Number of customers who paid cash: 3
Number of customers who used a credit card: 53
Total number of customers: 3 + 25 + 53 = 81
Probability of paying cash or a credit card = (3 + 53) / 81 = 56 / 81
Converting the probability to a percentage to the nearest whole number: 56 / 81 ≈ 69%.