ANSWER:
The probability that a student earns a grade of A is 14.29% or 0.14
STEP-BY-STEP EXPLANATION:
The probability would be the quotient of the number of frequency of Grade A and the total number of students:
[tex]p=\frac{5}{35}=\frac{1}{7}=0.1429=14.29\text{\%}[/tex]