A die is rolled once. What is the probability of getting a 7?
0
Probability of an event, P(E)
= Number of favourable outcomesNumber of total possible outcomes
Possible outcomes on a single roll of a die are 1, 2, 3, 4, 5 and 6. Therefore, the chance of getting a 7 (favourable outcome) on rolling the die once is 0. Thus, the probability of the event is 0 or it is an impossible event.