Question

if the probability of happening of an event is 4/7 then the probability of not happening of an event is​

Answer 1

Answer:

3/7

Step-by-step explanation:

total probability =1

probability of happening + probability of not happening =1

probability of not happening = 1-4/7

== 3/7

Answer 2

probability =4/7

total probability =4+x=7

so,7-4=x

7-4=3

hence,3/4 Ans