Answer:
Probability of not having homework tonight is

Explanation:
Given that the probability of having homework tonight is
. we have to find the probability of not having homework tonight.
As total probability is 1 i.e
P(occurring an event)+P(not occurring an event)=1
⇒ P(having homework tonight)+P(not having homework tonight)=1
⇒
+P(not having homework tonight)=1
⇒ P(not having homework tonight)=

Hence, Probability of not having homework tonight is
