Answer:
Step-by-step explanation:
Probability is expressed as
number of favorable outcomes/number of total outcomes.
Probability that a customer's drink will be medium = number of customers chose medium/total number of customers
From the information given,
number of customers chose medium = 48 + 12 = 60
total number of customers = 100
Probability that a customer's drink will be medium = 60/100 x 100
Probability that a customer's drink will be medium = 60%