PLEASE HELP! @) POINTS
Describe the relationship between the probability of an event and its complement. If the probability of an event is 0.3, what is the probability of its complement?

Respuesta :

= 1 - 0.3 
= 0.7 

Ratio is 0.3 to 0.7 or 3 to 7

1. The probability P of an event and its complement P' are mutually exclusive and add up to 1

2.  If the probability of an event is 0.3, then the probability of its complement is 0.7.   (1 - 0.3 = 0.7)