CFA Practice Question

CFA Practice Question

Josh drives to work every morning along a busy highway. He has a big meeting with his boss first thing in the morning and doesn't want to be late. If there is a 25% chance that Josh will sleep through his alarm clock, a 40% chance that Josh will get stuck in traffic during his drive, and a 10% chance that both events will occur, what is the probability that Josh will be late?
A. 75%
B. 65%
C. 55%
Explanation: Use the addition rule that one or more of the events will occur. P(A) = P(A) +P(B)-P(AB)

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