Probability MCQ Questions Class 9 Maths Chapter 15
NCERT MCQ Questions for Class 9 Maths Chapter 15 Probability. Probability MCQ Questions with Answers from Class 9 Maths.
Probability MCQ Questions Class 9 Maths Chapter 15
Probability Multiple Choice Questions with Answers Class 9 Maths Chapter 15 PDF is available.
1) ____ is an action which results in one or several outcomes.
a) An even
b) A trial
c) Both a and b
d) None
Ans: b) a trial
2) Getting a head is an event with outcome ____
a) Tail
b) Head
c) Both a and b
d) None
Ans: b) head
3) Getting a tail is an event with outcome ____
a) Tail
b) Head
c) Both a and b
d) None
Ans: a) tail
4) Probability of an event is given by
a) P(E) = number of trial in which the event happened/ the total number of trials
b) P(E)= number of trials in which the event happened* the total number of trials
c) Both a and b
d) None
Ans: a) P(E)= number of trials in which the event happened/ the total number of trials
5) The probability of each event is
a) 1
b) 0
c) Lies between 1 and 0
d) Both a and b
Ans: c) lies between 1 and 0
6) The sum of all probabilities is
a) 0
b) 1
c) Both a and b
d) Lies between 1 and 0
Ans: b) 1
7) ____ for an experiment is the collection of some outcomes of the experiment
a) A trial
b) An event
c) Both a and b
d) None
Ans: b) an event
8) _____ is the set which includes all the events.
a) An event
b) A trial
c) Sample space
d) None
Ans: c) sample space
9) If A is the event and A’ is the complement of the event A then
a) P(A’)= P(A) – 1
b) P(A’)= 1- P(A)
c) P(A’) = 1 + P(A)
d) None
Ans: b) P(A’) = 1- P(A)
10) When one coin is tossed then number of events in the sample space are
a) 4
b) 1
c) 2
d) ½
Ans: c) 2
11) When two coins are tossed simultaneously then number of events in sample space are
a) 2
b) 3
c) 4
d) 6
Ans: c) 4
12) When two coins are tossed then what is the probability of getting at least one head
a) 4/3
b) ¾
c) -3/4
d) 1
Ans: b) ¾
13) When two coins are tossed simultaneously then what is the probability of getting at most one head
a) ½
b) ¾
c) 4/3
d) -3/4
Ans: b) ¾
14) What is the probability of getting at least three heads when three coins are tossed simultaneously then
a) 1
b) 1/8
c) -1/8
d) 8
Ans: b) 1/8
15) When one dice is thrown then number of events in sample space are
a) 6
b) 36
c) 4
d) 3
Ans: a) 6
16) When two dice are thrown simultaneously then total number of outcomes are
a) 6
b) 12
c) 36
d) 4
Ans: c) 36
17) When two dice are thrown then probability of getting same number is
a) 6/36
b) 1/6
c) Both a and b
d) 3/6
Ans: c) both a and b
18) When two dice are thrown simultaneously then the probability of getting the product becomes perfect square is
a) 3/9
b) 1/9
c) 2/9
d) 5/9
Ans: c) 2/9
19) When two dice are thrown simultaneously then what is the probability of getting product equal to 12
a) 1/9
b) -1/9
c) 2/9
d) 3/9
Ans: a) 1/9
20) The total probability is always
a) 0
b) 1
c) Lies between 0 and 1
d) None
Ans: b) 1