If the probability is 1 in 10 million that an airliner with 450 passengers will crash in any given year, then the annual risk of a crash is
A) 450 deaths.
B) 1 in 10 million (0.0000001).
C) 0.0000001 × 450 = 0.000045.
D) 1 - (0.0000001 × 450) = 1 - 0.000045.
E) None of the above

Question

Quizplus · Accepted Answer

The annual risk of a crash is the probability of that event happening in a given year, which is directly stated as 1 in 10 million or 0.0000001, not the potential outcome of the event (number of deaths) or any other calculation derived from that probability.

If the Probability Is 1 in 10 Million That an Airliner