Most important MCQs of Statistics

By: Prof. Dr. Fazal Rehman | Last updated: May 20, 2025

1. : Measurement of a chance that an uncertain event will occur is:
(A) A trial
(B) An Experiment
(C) A probability
(D) An Event

2. : If P(A) = 0, then P(B|A) is ________
(A) Undefined
(B) 1
(C) Zero
(D) None of these

3. : Without regard to order a selection of distinct objects is called ___________
(A) Fictorial
(B) Combination
(C) Permutation
(D) Tree diagram

4. : A single outcome is __________
(A) A compound event
(B) A trial
(C) An experiment
(D) An elementary event

5. : What is the probability of occurrence of an event whose odds for occurrence are 12:7?
(A) 7/12
(B) 7/19
(C) 12/19
(D) 5/12

6. : From 5 members, what are the number of ways to select a committee of 3 members?
(A) 60
(B) 120
(C) 10
(D) 5

7. : What is the probability of queen or ten from a deck of cards?
(A) 1/52
(B) 2/13
(C) 1/4
(D) 1/2

8. : From 20 teachers, the number of ways to select 3 teachers for a course. It is an example of __________
(A) Factorial
(B) Combination
(C) Permutation
(D) Tree diagram

9. : What are the odds against an event if the probability of occurrence is 6/9?
(A) 6:3
(B) 6:9
(C) 9:6
(D) 3:6

10. : Show the 10% probability in terms of odds.
(A) 10:1
(B) 1/10
(C) 1:9
(D) 9:1

11. : If two cards are drawn from a deck of cards, what are the possible outcomes?
(A) 52×52
(B) 52!
(C) 52×51
(D) 1326

12. : If a single letter is selected from the word “Islamabad,” what is the probability that it is a vowel?
(A) 1/4
(B) 4/10
(C) 1/10
(D) 6/10