Answer:
53.33% probability he calls a person from school.
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
![P = (16)/(30) = 0.5333](https://img.qammunity.org/2022/formulas/mathematics/college/yy6485p7igkcuhhfyhh1hvctgc6ggducld.png)
53.33% probability he calls a person from school.