If the probability of an event is $p$,the probability of its complementary event will be

Two dice are thrown together. Find the probability that the product of the numbers on the top of the dice is
$(i) \, 6$
$(ii) \, 12$
$(iii) \, 7$

When we toss a coin,there are two possible outcomes - Head or Tail. Therefore,the probability of each outcome is $\frac{1}{2}$. Justify your answer.

There are $5$ white,$7$ red,$4$ black and $2$ blue identical balls in a box. One ball is selected at random from the box. Find the probability that the selected ball is either red or black. (in $/18$)

Two balanced dice are rolled. Find the probability that the sum of numbers on two dice lies between $5$ and $9$.

In any situation that has only two possible outcomes,each outcome will have a probability of $\frac{1}{2}$. True or false? Why?