An emergency medical technician (emt) arrives at the scene of a bad car accident and calmly prepares a severely injured passenger for transport to a hospital while others at the scene are screaming and crying with fear and grief. the emt's training has resulted in behavior similar to the symptom of schizophrenia called:

Schizophrenia symptom in this scene is a negative symptom. The emt was emotionally flat or looked like was disconnected. Emt showed little interest in life. Emt was unable to follow through the activity for the other people who were crying with fear and grief. Negative symptoms can be confused with clinical depression.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.