Answer:
53.33% probability he calls a person from school.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
What is P(call a person from school)?
He has 30 total contacts, of which 16 are from school. So
[tex]P = \frac{16}{30} = 0.5333[/tex]
53.33% probability he calls a person from school.