The probability that a marksman will hit a target is given as $1/5$. Then his probability of at least one hit in $10$ shots, is
$1 - {\left( {\frac{4}{5}} \right)^{10}}$
$\frac{1}{{{5^{10}}}}$
$1 - \frac{1}{{{5^{10}}}}$
None of these
A die is thrown. Describe the following events : $A$ : a number less than $7.$ , $B:$ a number greater than $7.$ , $C$ : a multiple of $3.$ Find the $B \cup C$
A coin is tossed and a dice is rolled. The probability that the coin shows the head and the dice shows $6$ is
Three fair coins are tossed. If both heads and tails appears, then the probability that exactly one head appears, is
Consider the experiment of rolling a die. Let $A$ be the event 'getting a prime number ', $B$ be the event 'getting an odd number '. Write the sets representing the events $A$ but not $B$
A bag contains $3$ white, $3$ black and $2$ red balls. One by one three balls are drawn without replacing them. The probability that the third ball is red, is