Question

Mr. Doodle’s grade distribution over the past 3 years for a course in college algebra is shown in the chart below.
Grade number
A 45
B 180
C 110
D 95
F 65
I 5

If Jane plans to take a college algebra course with Mr. Doodle, determine the empirical probability that she receives an A

Answer 1

In the absence of any information about Jane, just add up the numbers for the total, then you'll know what to do..

Answer 2

this can be called the relative frequency

it is the frequency of the desired outcome over the total of all frequencies

hope this helps