If $A$ and $B$ are two independent events such that $P\,(A \cap B') = \frac{3}{{25}}$ and $P\,(A' \cap B) = \frac{8}{{25}},$ then $P(A) = $
$\frac{1}{5}$
$\frac{3}{8}$
$\frac{2}{5}$
$\frac{4}{5}$
A card is drawn from a well shuffled pack of cards. The probability of getting a queen of club or king of heart is
Let two fair dices $A$ and $B$ are thrown. Then the probability that number appears on dice $A$ is greater than number appears on dice $B$ is
Three coins are tossed once. Find the probability of getting at most $2$ heads.
A coin is tossed. If the out come is a head, a die is thrown. If the die shows up an even number, the die is thrown again. What is the sample space for the experiment?
A person can kill a bird with probability $3/4$. He tries $5$ times. What is the probability that he may not kill the bird