Four dice (six-faced) are rolled. The number of possible outcomes in which at least one die shows $2$ is

Two dice are thrown together. The probability that the sum of the two numbers will be a multiple of $4$ is

Two students appeared simultaneously for an entrance exam. If the probability that the first student gets qualified in the exam is $\frac{1}{4}$ and the probability that the second student gets qualified in the same exam is $\frac{2}{5}$,then the probability that at least one of them gets qualified in that exam is

The probability of getting head and tail alternately in three throws of a coin (or a throw of three coins) is:

If $A$ is a sure event,then the value of $P(\text{not } A)$ is:

Two dice are thrown simultaneously. The probability of obtaining a total score of $5$ is