Probability of the event is a number between 0 and 1.
Probability of the event = ( Number of ways it can happen ) : ( Total number of outcomes )
If the odds are 7 to 4:
- number of ways it can happen: 7.
- total number of outcomes : 7 + 4 = 11
Probability = 7 : 11 = 7/11 = 0.6364
Answer: The probability of this event is 0.6364 or 63.64%.