pls help asap!!!!!!!!!!! points will be a lot! plssssss

Step-by-step explanation:
(n-m) out of n
not sure if this is correct or something....
Answer:
1 - m/n
n-m/m
Step-by-step explanation:
Two events are said to be complementary when one event occurs if and only if the other does not. The probabilities of two complimentary events add up to 1.