$A$ die is thrown. Find the probability of the following event: $A$ number less than or equal to $1$ will appear.

Let $A$ and $B$ be two independent events. The probability that both $A$ and $B$ happen is $\frac{1}{12}$ and the probability that neither $A$ nor $B$ happens is $\frac{1}{2}$. Then

Two dice are thrown. The probability that the sum of the points on two dice will be $7$ is:

If a die is thrown $2$ times,what is the probability of getting $4$ at least once?

The event $A$ is independent of itself if and only if $P(A) = $

The probability of an impossible event,i.e.,$P(\phi)$,is