Answer to Question #104682 in Statistics and Probability for ps

Question

The probability of any event is always a proper fraction. true or false.
give reasons.

Answer 1

True. Because the probability of any event is always between 0 and 1.

P(A) =$\frac a b$

Where a is the number possible of outcomes of event A

b is the total number of possible outcomes in an experiment

a<b

However there are 2 special cases when the probability is not a fraction

1) when an event is impossible it has a 0 probability.

2) when an event occurs with certainly with a probability of 1.