The probability of getting number $5$ in throwing a dice is
$1$
$\frac{1}{3}$
$\frac{1}{6}$
$\frac{5}{6}$
A die is thrown repeatedly until a six comes up. What is the sample space for this experiment ?
If $A$ is a sure event, then the value of $P (A$ not ) is
Two integers are chosen at random and multiplied. The probability that the product is an even integer is
Consider the experiment of rolling a die. Let $A$ be the event 'getting a prime number ', $B$ be the event 'getting an odd number '. Write the sets representing the events $^{\prime}$ not $A\,^{\prime}$.
A box containing $4$ white pens and $2$ black pens. Another box containing $3$ white pens and $5$ black pens. If one pen is selected from each box, then the probability that both the pens are white is equal to