PROBABILITY

PROBABILITY

by ARTI JAIN

Multiple Choice

The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow 

• 0.23

• 0.25

• 0.15

• 0.35

Multiple Choice

The probability of number greater than 2 with a fair dice is

• 3/5

• 2/5

• 2/3

• 1/3

Multiple Choice

The probability of a certain event is 

• 0

• 1

• 1/2

• none of these

Multiple Choice

A card is drawn at random from a pack of 52 cards. The probability that the card drawn is not an ace is

• 1/13

• 9/13

• 4/13

• 12/13

Multiple Choice

A month is selected at random in a year. The probability that it is March or October, is

• 1/12

• 1/6

• 3/4

• none of these

Multiple Choice

What is the probabilty that leap year has 52 Mondays

• 2/7

• 4/7

• 5/7

• 6/7

Multiple Choice

Simar sold 100 lottery tickets in which 5 tickets carry prizez. If Khushi purchased a ticket , what is the probability of Khushi winning a prize

• 19/20

• 1/25

• 1/20

• 17/20

Multiple Choice

A card is drawn at random from a pack of 52 cards. The probability that the card drawn is the queen of diamond

• 1/26

• 3/13

• 1/4

• 1/52

Multiple Choice

Which of the following cannot be the probability of an event

• 1/3

• 0.1

• 3%

• 17/16

Multiple Choice

A number was chosen from 1 to 100. What is the probability that this number is a prime number between 75 and 85

• 1/10

• 1/50

• 1/25

• 7/100

Multiple Choice

If a letter is chosen at random from the letters of English alphabets , then the probability that it is the letter of word DELHI is

• 1/5

• 1/26

• 5/26

• 21/26

Multiple Choice

A School has five houses A,B,C,D,E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D, and rest from house E. A single student is chosen at random to be the class monitor. The probability that the student selected is not from A, B and C is:

• 4/23

• 6/23

• 8/23

• 17/23

Multiple Choice

One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5

• 1/5

• 3/5

• 4/5

• 1/3

Multiple Choice

Two dice are rolled simultaneously . The probability that they show different faces is

• 2/3

• 1/6

• 1/3

• 5/6

Multiple Choice

In a family of three children , the probability of having at least one boy is

• 7/8

• 1/8

• 5/8

• 3/4