Question

The probability that it will rain today is $0.84$.What is the probability that it will not rain today?

Answer 1

Let $E$ denote an event and $\overline{E}$ denote its complement.
It follows that: $P\left(\overline{E}\right)=1-P\left(E\right)$
Therefore, probability of not raining=$1-0.84=0.16$