Answer:
20% probability that the next customer will pay with cash
Step-by-step explanation:
A probability, as a decimal, is the number of desired outcomes divided by the number of total outcomes.
To find as percent, we multiply by 100.
In this question:
Total of 54+63+153 = 270 customers.
Of those, 54 paid with cash.
Based on the number of customers from last week, what is the probability as a percent that the next customer will pay with cash?
54/270 = 0.2
0.2*100 = 20%
20% probability that the next customer will pay with cash