Final answer:
A pediatric nurse might suspect the probability of an ear infection in a 6-month-old child based on symptoms such as pulling at the ear, fever, irritability, fussiness, runny nose, and coughing.
Step-by-step explanation:
A pediatric nurse might suspect the probability of an ear infection in a 6-month-old child based on several symptoms. Firstly, the child pulling at their ear is a common sign of an ear infection.
Secondly, the presence of a fever, irritability, and fussiness can also indicate an ear infection.
Additionally, a runny nose and coughing may also suggest the probability of an ear infection in the child.