If the probability of rain is 0.2, what is the probability of no rain?

To determine the probability of no rain when the probability of rain is given as 0.2, you can use the fundamental principle of probability that states the total probability for all possible outcomes must equal 1.

If the probability of rain is 0.2, this means there is a 20% chance of rain occurring. Since the only other possible outcome is no rain, the probability of no rain can be calculated by subtracting the probability of rain from 1.

This gives us the calculation:

1 - 0.2 = 0.8

This result signifies that there’s an 80% chance of no rain, thus confirming that the correct answer is indeed 0.8. The probability of no rain reflects the complement of the probability of rain, encapsulating all scenarios where rain does not occur.