The probability of getting a sum of $16$ in one throw with three dice is:

Study the given information carefully and answer the questions that follow: $A$ basket contains $4$ red,$5$ blue and $3$ green marbles. If $3$ marbles are picked at random,what is the probability that either all are green or all are red?

If $A$ and $B$ are mutually exclusive events,then the value of $P(A \text{ or } B)$ is

Three integers are chosen at random from the first $20$ integers. The probability that their product is even is:

$2$ dice are thrown. Find the probability of getting a multiple of $3$ as the sum.

$A$ card is drawn from an ordinary pack and a gambler bets that it is a spade or an ace. What are the odds against his winning the bet?