1
Given two events A and B. If odds against A are as 2:1 and those in fa ...
Probability
2
The probability that in a family of 5 members, exactly two members hav ...
Probability
3
The probability that a marksman will hit a target is given as 1/5. The ...
Probability
4
A student appears for tests I, II and III. The student is successful i ...
Probability
5
The numbers 1, 2, 3, ..., n are arranged in random order. The probabil ...
Probability
6
Events A and C are independent. If the probabilities relating A, B and ...
Probability
7
Two dices are rolled one after the other. The probability that the num ...
Probability
8
A natural number is chosen at random from the first 100 natural number ...
Probability
9
A cricket club has 15 members, of whom only 5 can bowl. If the names o ...
Probability
10
The sum of two positive quantities is equal to 2n. The probability tha ...
Probability
11
The probability that a teacher will give an unannounced test during an ...
Probability
12
A box contains tickets numbered from 1 to 20. Three tickets are drawn ...
Probability
13
An unbiased coin is tossed n times. If the probability that head occur ...
Probability
14
Cards are drawn one-by-one at random from a well-shuffled pack of 52 p ...
Probability
15
Two players toss 4 coins each. The probability that they both obtain t ...
Probability
16
Three houses are available in a locality. Three persons apply for the ...
Probability
17
A class consists of 80 students, 25 of them are girls and 55 are boys. ...
Probability
18
A drawer contains 5 brown socks and 4 blue socks well mixed. A man rea ...
Probability
19
A box contains 2 black, 4 white and 3 red balls. One ball is drawn at ...
Probability
20
There are 20 cards. Ten of these cards have the letter 'I' printed on ...
Probability
21
The chance of an event happening is the square of the chance of a seco ...
Probability
22
If a party of n persons sit at a round table, then the odds against tw ...
Probability
23
Let A and B be two events such that P(A∩B')= 0.20, P(A'∪B)=0.15, P(A'∩ ...
Probability
24
A die is thrown a fixed number of times. If probability of getting eve ...
Probability
25
A pair of four dice is thrown independently three times. The probabili ...
Probability
26
Words from the letters of the word PROBABILITY are formed by taking al ...
Probability
27
A sample space consists of 3 sample points with associated probabiliti ...
Probability
28
South African cricket captain lost the toss of a coin 13 times out of ...
Probability
29
There are only two women among 20 persons taking part in a pleasure tr ...
Probability
30
Let A and B be two events. Suppose P(A)=0.4, P(B)= p and P(A U B)=0.7. ...
Probability
31
Five different games are to be distributed among 4 children randomly. ...
Probability
32
A four-figure number is formed of the figures 1, 2, 3, 5 with no repet ...
Probability
33
A bag contains an assortment of blue and red balls. If two balls are d ...
Probability
34
Dialing a telephone number an old man forgets the last two digits reme ...
Probability
35
A father has 3 children with at least one boy. The probability that he ...
Probability
36
In a game called 'odd man out' m(m > 2) persons toss a coin to determi ...
Probability
37
A six-faced dice is so biased that it is twice as likely to show an ev ...
Probability
38
A problem in mathematics is given to three students A, B, C and their ...
Probability
39
Five horses are in a race. Mr. A selects two of the horses at random a ...
Probability
40
Let A, B, C, D be independent events such that P(A)=1/2, P(B)= 1/3, P( ...
Probability
41
Twelve balls are distributed among three boxes. The probability that t ...
Probability
42
Three integers are chosen at random from the first 20 integers. The pr ...
Probability
43
One ticket is selected at random from 100 tickets numbered 00, 01, 02, ...
Probability
44
A and B toss a fair coin each simultaneously 50 times. The probability ...
Probability
45
If a is an integer lying in [-5, 30], then the probability that the gr ...
Probability
46
2n boys are randomly divided into two subgroups containing n boys each ...
Probability
