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

In an experiment of throwing three fair dice,the probability of getting a sum of $16$ is ..........

$A$ number is chosen at random from the first ten natural numbers. The probability that the number is odd and a perfect square is

Two dice are rolled one after the other. The probability that the number on the first die is smaller than the number on the second die is:

$A$ man and his wife appear for an interview for two posts. The probability of the husband's selection is $\frac{1}{7}$ and that of the wife's selection is $\frac{1}{5}$. What is the probability that only one of them will be selected?

If one ticket is selected at random from $30$ tickets,each with a distinct number from $1$ to $30$,then the probability that the number on the selected ticket is a multiple of $3$ or $5$ is