Final answer:
To find the probability that the next customer will pay with something other than a debit card, subtract the probability of paying with a debit card from 100%. The probability is approximately 82%.
Step-by-step explanation:
To find the probability that the next customer will pay with something other than a debit card, we need to subtract the probability of paying with a debit card from 100%. The probability of paying with a debit card is the number of customers who paid with a debit card divided by the total number of customers. In this case, the number of customers who paid with a debit card is 20 and the total number of customers is 70 + 20 + 22 = 112. So, the probability of paying with a debit card is 20/112 = 0.1786.
Therefore, the probability of paying with something other than a debit card is 1 - 0.1786 = 0.8214.
To express this probability as a percent to the nearest whole number, we multiply by 100 and round to the nearest whole number. So, the probability is approximately 82%.