# Unseen Passage

For Class 4 to Class 12

# Probability MCQ Class 9 Mathematics

Please refer to Chapter 15 Probability MCQ Class 9 Mathematics with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 9 Mathematics. Students should refer to MCQ Questions for Class 9 Mathematics with Answers to score more marks in Grade 9 Mathematics exams. Students should read the chapter Probability and then attempt the following objective questions.

## MCQ Questions Class 9 MathematicsChapter 15 Probability

The Probability MCQ Class 9 Mathematics provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.

Question. Packets of salt, each marked 2 kg, actually contained the following weights (in kg) of salt :
1.980, 2.000, 2.025, 1.850, 1.990, 2.040, 1.950, 2.050, 2.060, 1.980, 2.030, 1.970
Out of these packets one packet is chosen at random.
The probability that the chosen packet contains less than 2 kg of salt is
(a) 1/12
(b) 1/4
(c) 1/3
(d) 1/2

D

Question. Three coins are tossed simultaneously 200 times with following outcomes :

The probability of getting two heads is
(a) 23/25
(b) 9/25
(c) 18/25
(d) 4/5

B

Question. A die is thrown 225 times and the results were as follows :

The probability of getting a prime number is
(a) 8/45
(b) 2/5
(c) 24/225
(d) 124/225

B

Question. The salaries of 150 employees in an office are given below :

An employee is selected at random. The probability that his salary is Rs 6,000 or more but less than Rs 12,000 is
(a) 7/30
(b) 32/75
(c) 29/150
(d) 58/75

B

Question. In an experiment a coin is tossed 500 times. If the head turns up 280 times, the experimental probability of getting a head is
(a) 14/25
(b) 11/25
(c) 13/25
(d) 19/25

A

Question. In a section of class IX having 40 students, the following blood groups are recorded :

A student is selected at random from the class. The probability that he/she has blood group B, is
(a) 1/4
(b) 13/40
(c) 3/10
(d) 1/8

C

Question. A machine generated these 10 codes :
{0A1, AAA, ABC, 2B1, 3B7, BB2, 1AC, 111, 222, 333}.
A code is drawn at random to allot an employee. The probability that the code have at least two digits is
(a) 2/5
(b) 3/5
(c) 4/5
(d) None of these

B

Question. A die is thrown 200 times simultaneously, and the frequencies of various outcomes are given below :

The probability of getting 5 is
(a) 1/40
(b) 13/40
(c) 11/40
(d) 1/5

B

Question. In a cricket match, a batsman hits a boundary 4 times out of 25 balls, he plays. The probability that he hits a boundary is
(a) 4/25
(b) 21/25
(c) 25/4
(d) 25/21

A

Question. In a sample study of 642 people, it was found that 514 people have a high school certificate. If a person is selected at random, the probability that the person has a high school certificate is
(a) 0.5
(b) 0.6
(c) 0.7
(d) 0.8

D

Question. The following table shows the blood groups of 60 students of a class :

One student of the class is chosen at random. What is the probability that the chosen student has either blood group A or B?
(a) 1/5
(b) 1/30
(c) 7/15
(d) 17/30

C

Question. A coin is tossed 100 times and head appears 64 times. The probability of getting a tail is
(a) 18/25
(b) 9/25
(c) 0
(d) 1

B

Case-based MCQs

Independence Day is celebrated on 15th August in every school. This day always remind us of the untold sacrifices of the fighters of freedom. We should worship those patriots who shed their blood for achieving Freedom.
In a school, Independence Day was celebrated. Out of 1500 students, 1000 students took part in this celebration.

Using the above data, answer the following questions.

Question. What is the probability of the number of students who participated in the celebration ?
(a) 1/2
(b) 3/5
(c) 3/2
(d) 2/3

D

Question. Probability of an event E happening, is given by:
(a) Number of trials in which the event happened / The total number of trials
(b) The total number of trials / Number of trials in which the event happened
(c) Total number of trials – Number of trials in which the event happened
(d) None of above

A

Question. What is the probability of the students participated if 700 students took part in the celebration out of 1000 students ?
(a) 7/10
(b) 1/7
(c) 7/9
(d) none of these

A

Question. Probability of an event lies between :
(a) – 1 and 1
(b) 0 and 1
(c) 0 and 2
(d) 0 and 0.5

B

Question. What is the probability of the students that did not participate in the celebration ?
(a) 1/5
(b) 1/3
(c) 2/3
(d) 2/5