First Year ICS Statistics Chapter 7 Online MCQ Test (Random Variables)

This online test contains MCQs about following topics:

Introduction to random variables . Random numbers and their generation . Application of random number . Concept of random variable and their construction from different fields . Discreate and continuous random variables

ICS Part 1 Statistics Chapter 7 Test

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ICS Part 1 Statistics Chapter Wise Test

MCQ's Test For Chapter 7 "Statistics Ics Part 1 Chapter 7 Online Test"

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Statistics Ics Part 1 Chapter 7 Online Test

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Question # 1

When two coins are tossed simulataneously the probability of at most one head is.

Question # 2

Var (B/aX) =?

Question # 3

The probability of getting one red ball from a bag constaining 4 red, 3 white and 3 black balls is.

Question # 4

If x is a random variable with E(x) = 5 then E (3x - 2) =

Question # 5

The probability of drawan any one spade card is.

Question # 6

F(-∞) is always equal to

Question # 7

E(x - μ) is equal to:

Question # 8

When three coins are tossed simulatneously, P(3 heads) is.

Question # 9

For two independent random variables, Var(x) = 14 and Var(Y ) = 5, then var (X-y) is equal to.

Question # 10

E(y-μ) is equal to

Question # 11

For discrete random variable 'X' the expectation of X I-e E(x) is equal to:

Question # 12

A set of numerical values assigned to a sample space is called.

Question # 13

If the random variable x denotes the number of heads when three distinct coins are tossed, the x assumes values

Question # 14

Variance of σ2 is equal E to (Y2) - _______?

Question # 15

Coefficient  of variation (C.V) is given below

Question # 16

The properties of discrete probability distribution are:

Question # 17

When two dice are rolled, the numebr of possible sample points is.

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ICS Part 1 Statistics Chapter 7 MCQs Test

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ICS Part 1 Statistics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The properties of discrete probability distribution are:
A. Σp (x) = 1 and Σx. (x) = 1
B. ΣP (x)= 1 and Σx. P
C. ΣP(x) = 1 and 0 < P(x) ≤ 1
D. All of these above
2 A lettter is chosen at random from the word STATITICS , The probability of getting a vowel is.
A. 1/5
B. 3/10
C. 1/2
D. 2/5
3 The probability of an impossible event is.
A. Positive
B. Zero
C. Negative
D. 1
4 The probability of an event connot be.
A. = 0
B. > 0
C. =1
D. < 0
5 E(X ± Y) =..............
A. E(X) + E(Y)
B. E(X) - E (Y)
C. E(x) ± E (Y)
D. None of these
6 Coefficient  of variation (C.V) is given below
A. Mean /S.D x10
B. Mean/S.D x 100
C. S.D/Mean x 100 
D. S.D/ Mean 
7 If y =-7x then E(y) = ...............
A. E(x)
B. -7X
C. -7E(X)
D. Zero
8 Waht is the probability that a ball drawn at random from the bag is.
A. 0.1
B. 0.4
C. 1.0
D. Cannot be determined from given information
9 The probability distribution of discrete random variable is called is
A. Frequency distribution
B. Probability distribution
C. Probability mass function
D. Both (a) and (b)
10 Why are the outcomes of a coin tossing mutually exclusive.
A. The outcome of any toss is not affected by teh outcome of those preceding it.
B. Both a head and a tail cannot turn up on any one toss
C. The probability of getting a head and the probability of getting a tail is the same.
D. All of these

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