Question

Your professor told the class that, typically, 20% of the class receives As, 20% Bs, 35% Cs, 10% Ds, and 15% Fs.

What is the probability that the student sitting net to you will receive an A or an F?

Answer 1

0.35

Explanation:

P(A) = 0.2

P(F) = 0.15

P(A or F) = 0.2 + 0.15 = 0.35