In a throw of a coin, the probability of getting a head is ?<br><br>

One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)?<br><br>

Seven white balls and three black balls are randomly placed in a row, The probability that no two black balls are placed adjacently equals ?<br><br>

An anti-aircraft gun can take a maximum of four shots at an enemy plane moving away from it ,The probability of hitting the plane at the first, second, third and fourth shots are 0.4, 0.3, 0.2, and 0.<br><br>

If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is -.<br><br>

Let A and B be independent events with P (A) = 0.7 and P(B) = 0.7. Find P(A n B)?<br><br>

A bag contains 2 red, 3 green and 2 blue balls.Two balls are drawn at random.What is the probability that none of the drawn ball is blue?<br><br>

For a random variable X, E(X) is<br><br>

A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is<br><br>

The chance of throwing a total of 3 or 5 or 11 with two dics is ?<br><br>