Final answer:
The computation that would give the probability that a blue sedan is not chosen is (1 - 0.2).
Step-by-step explanation:
The computation that would give the probability that a blue sedan is not chosen is (1 - 0.2).
To find the probability that an event will not occur, you subtract the probability of the event happening from 1. In this case, the probability of choosing a blue sedan is 0.2, so the probability of not choosing a blue sedan is 1 - 0.2, which simplifies to 0.8.