Bihar Police Constable Model Paper 7

Given:
The probability that it will rain today = 0.55
Concept used:
1.) The probability of an event will not be less than 0 because 0 is impossible (sure that something will not happen).
2.) The probability of an event will not be more than 1. This is because 1 is certain that something will happen.
3.) The probability of an event is always between 0 to 1
Calculations:
The probability that it will not rain today = 1 – 0.55
⇒ 0.45 = 9/20
∴ The probability that it will not rain today is 9/20