The probability of India winning a test match against West Indies is $\frac{1}{2}$. Assuming independence from match to match, the probability that in a $5$ match series India's second win occurs at the third test, is

Two dice are thrown. The events $A, B$ and $C$ are as follows:

$A:$ getting an even number on the first die.

$B:$ getting an odd number on the first die.

$C:$ getting the sum of the numbers on the dice $\leq 5$

Describe the events $A$ and $B$

The probability of choosing at random a number that is divisible by $6$ or $8$ from among $1$ to $90$ is equal to

From a pack of $52$ cards one card is drawn at random, the probability that it is either a king or a queen is

In a single throw of two dice, the probability of getting more than $7$ is

If a coin be tossed $n$ times then probability that the head comes odd times is