Sum of the probabilities of each outcome in an experiment is...........

Probability of getting 6 with single die is.........

Probability of an event E+Probability of the event 'not E' = .............

In the word 'ASSASSINATION' the probability of getting a vowel is..........

Cards marked with number 3, 4, 5,.........., 50 are placed in a box and mixed thoroughly. A card is drawn at random from the box. Find the probability that the selected card bears a perfect square number.

For any event E, P(E)+P(\(\overset { - }{ E } \))

Set of all possible outcomes of the experiment is called the sample space.

Probability of an event cannot be negative.

P(E)+P(\(\overset{-}{E}\))=1.

Queen, King and Jack are face cards.

Probability of an event E + Probability of the event 'not E' = --------------

The sum of the probabilities of all the elementary events of an experiment is _______________

Cards bearing numbers 3 to 20 are placed in a bag and mixed thoroughly. A card is taken out from the bag at random. What is the probability that the number on the card taken out is an even number?

A card is drawn at random from a well-shuffled deck of 52 cards. Find the probability of getting a club.

If a die is thrown once, find the probability of getting a number less than 3 and greater than 2.

Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game?

A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be (i) red? (ii) white? (iii) not green?

A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (see Fig.), and these are equally likely outcomes. What is the probability that it will point at
(i) 8 ?
(ii) an odd number?
(iii) a number greater than 2?
(iv) a number less than 9?

A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good, but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. What is the probability that (i) She will buy it ? (ii) She will not buy it ?

A die is thrown twice. What is the probability that
(i) 5 will not come up either time?
(ii) 5 will come up at least once?
[Hint : Throwing a die twice and throwing two dice simultaneously are treated as the same experiment]

A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card drawn is

(i) a king or a jack   (ii) a non-ace

(iii) a red card   (iv) neither a king nor a queen

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball from the bag is thrice that of a red ball, find the number of blue balls in the bag.

The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well-shuffled. One card is selected from the remaining cards. Find the probability of getting
(i) a heart   (ii) a king   (iii) a club   (iv) the '10' of hearts

From a pack of 52 playing cards, Jacks, Queens and Kings of red colours are removed. From the remaining, a card is drawn at random. Find the probability that drawn card is : (i) a black king (ii) a card of red colour (iii) a card of black colour

A card is drawn from a well shuffled deck of 52 cards.Find the probability of getting:
(i)A king of red colour
(ii)A face card
(iii)The queen of diamonds.

A child's game has 8 triangles of which 3 are blue and rest are red, and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a
(i) triangle  (ii) square
(iii) square of blue colour  (iv) triangle of red colour