Tag: some more terms in probability

If $P(A) = 0$, then the event $A$

The probability of a sure event (or certain event) is ____

The probability of an event that is certain to happen is ____?

Tickets numbered from $1$ to $30$ are mixed up and then a ticket is drawn at random. What is the probability that the drawn ticket has a number which is divisible by both $2$ and $6$?

The number of ways in which $6$ men can be arranged in a row, so that three particular men are consecutive, is 

If A and B are such events that $P(A)>0$ and $ P(B)\neq 1$ then $P\left(\dfrac{\bar{A}}{\bar{B}}\right)$ is equal to-

4 normal distinguishable dice are rolled once. The number of possible outcomes in which at least one dice shows up 2?

$8$ players compete in a tournament, every one plays everyone else just once. The winner of a game gets $1$, the loser $0$ or each gets $\dfrac{1}{2}$ if the game is drawn. The final result is that every one gets a different score and the player playing placing second gets the same as the total of four bottom players.The total score of all the players is

A fair die is thrown 3 times . The chance that sum of three numbers appearing on the die is less than 11 , is equal to -

The probability that a number selected at random from the numbers $1,2,3.......15$ is a multiple of $4$ is