The probability of a sure event is ___.

Hint : Probability of hundred percent of happening of event is 1 The probability of a sure event is 1. NOTE :- A sure event is an event, which always happens. For example ,it's a sure event to obtain a number between 1 and 6 when rolling an ordinary die. The probability of a sure event has the value of 1. The probability of an impossible event has the value of 0. .