If the probability of rain on any given day in City X…

If the probability of rain on any given day in City X is 20%, what is probability that it rains on exactly 3 days in a 4 day period?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #11490