Question

what is the chance it will rain 2 days out the week if the probability of rain is 0.2 percent

Answer 1

The binomial distribution applies:
\[P(2\ days\ out\ of\ the\ week)=\left(\begin{matrix}7 \\ 2\end{matrix}\right)0.2^{2}(1-0.2)^{5}=you\ can\ calculate\]

Answer 2

Thank you so much.

Answer 3

You're welcome :)