Test: Probability- 2 - Commerce MCQ

The probability that a card drawn at random from a pack of 52 cards is a king or a heart is

Three prizes are distributed among three persons at random. The chances that none of the persons gets all the prizes is

The letters of the word ‘MALENKOV‘are arranged in all possible ways. The chance that there are exactly four letters between M and E is

The letters of the word ‘ORIENTAL‘ are arranged in all possible ways. The chance that the consonants and vowels occur alternately is

8 coins are tossed at a time. The probability of getting atleast 6 heads up is

There are 2 boxes. One box contains 3 white balls and 2 black balls. The other box contains 7 yellow balls and 3 black balls. If a box is selected at random and from it, a ball is drawn, the probability that the ball drawn is black is

If A and B are two mutually exclusive events, then P (A + B) is equal to

If E₁ and E₂ are two independent events, then P (E₁∩E₂) is equal to

If E is an event, then P is equal to

If the probability for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A fails or B fails is

A person throws successively with a pair of dice. The chance that he throws 9 before he throws 7 is

In a single throw of two dice, the probability of getting a total of 7 or 9 is 

A box contains 100 tickets numbered 1, 2, 3, ….100. Two tickets are chosen at random. If it is given that the maximum number on the two chosen tickets is not more than 10, then the probability that the minimum number on them is not less than 5 is

Two events A and B have probabilities 0.25 and 0.50 respectively. The probability that both A and B occur simultaneously is 0.14. Then the probability that neither A nor B occurs is

India plays two matches each with West Indies and Australia. In any match the probabilities of India getting points 0, 1 and 2 are 0.45, 0.5 and 0.5 respectively. Assuming that the outcomes are independent, the probability of India getting atleast 7 points is

An unbiased dice is rolled four times. The probability that the minimum number on any toss is not less than 3 is

The probability that a man will live for 10 more years is 1/4 and that his wife will live 10 more years is 1/3. The probability that neither will be alive in 10 years is

A and B toss 3 coins. The probability that they both obtain the same number of heads is 

Three identical dice are rolled. The probability that the same number will appear on each of them is 

A digit is selected at random from either of the two sets {1, 2, 3, 4, 5, 6, 7, 8, 9} and {1, 2, 3, 4, 5, 6, 7, 8, 9}. What is the chance that the sum of the digits selected is 10 ?

If two squares are chosen at random on a chess board, the probability that they have a side common is

A coin tail on both sides is tossed twice. The probability of getting ‘a head’ is