From the word `$POSSESSIVE$', a letter is chosen at random. The probability of it to be $S$ is
$\frac{3}{{10}}$
$\frac{4}{{10}}$
$\frac{3}{6}$
$\frac{4}{6}$
An anti aircraft gun take four shots at an enemy plane moving away from it. The probability of hitting the plane at the first, second, third and fourth shot are $0.4, 0.3, 0.2$ and $0.1$ respectively. The probability that the gun hit the plane is :-
A card is drawn at random from a pack of cards. What is the probability that the drawn card is neither a heart nor a king
A die is thrown. Describe the following events : $A$ : a number less than $7.$ Find the $A \cup B$.
In a college of $300$ students, every student reads $5$ newspapers and every newspaper is read by $60$ students. The number of newspapers is
For any event $A$