the probability of an event occurring 0.35. the probability of the event not occuring is?

P(the event occurs)
= 0.35

P(the event does not occur)
= 1 - P(the event occurs)
= 1- 0.35
= 0.65

0.65

Probability that an event does not occur=1−Probability that an event occurs
=1−0.35=0.65

Probability of an event occurring + probability of an event not occurring =1
so probability of an event not occuring =1-probability of an event occurring
=1-0.35
=0.65