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

Events with equal probabilities are called.

Question # 2

a measure of the chance that an uncertain event will occur.

Question # 3

The numbered balls are paced in an urn, Numbers 1- 4 are red and numbers 5 -10 are blue. the probability that a ball drawn at random from the run is blue is.

Question # 4

For a constant K ,the variance of K.

Question # 5

The simplest form of the continues distribution is the

Question # 6

The probability of a continuous random variable at x = a is ---------------

Question # 7

E(x - μ) is equal to:

Question # 8

Var (3x + 2)

Question # 9

Waht is the probability that a ball drawn at random from the bag is.

Question # 10

When a pair of dice is rolled, the sum of upperemost dots vary from.

Question # 11

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

Question # 12

The coins are tossed, the porbability of two tails is euql to.

Question # 13

The probability of red card out of 52 cards is.

Question # 14

Variance σ2 is equal to E(y2) -  --------------------

Question # 15

The probability of drawing two acea from apack of 52 cards with replacement is.

Question # 16

If two coins are tossed, the probability of getting one head and one tail is.

Question # 17

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

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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 Tossing two dice possble sampes are.
A. 2
B. 6
C. 12
D. 36
2 Variance of σ2 is equal E to (Y2) - _______?
A. E (y)
B. [E(y)]2
C. E(y2)
D. None of these
3 When two coins are tossed simultaneously, P (one head ) is.
A. 1/2
B. 1/4
C. 3/4
D. 1.0
4 For discrete random variable 'X' the expectation of X I-e E(x) is equal to:
A. Σp(x)
B. Σxp(x)
C. Σx2p(x)
D. One
5 F(-∞) is always equal to
A. Zero
B. One
C. Two
D. Negative one
6 What is the probability that a value chosen at random from a particular population is larger than the median of the popultion.
A. 0.25
B. 0.5
C. 1.0
D. 0.67
7 Var (B/aX) =?
A. 1/aVar(X)
B. b2/a2 Var(X)
C. b2/a Var(X)
D. None of these
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 of drawing two acea from apack of 52 cards with replacement is.
A. 1/169
B. 1/10
C. 1/4
D. 1/256
10 the collection of all possible outcome of a random experimnet is called.
A. Sample point
B. Sure event
C. sample event
D. simple event

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