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

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

Question # 2

A random variable is also called.

Question # 3

Which is the impossible event when a dice is rolled.

Question # 4

For a constant K ,the variance of K.

Question # 5

Is the tossing of two perfect coins the probability at least one head occur is.

Question # 6

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

Question # 7

Events with equal probabilities are called.

Question # 8

A probability function is _________ function.

Question # 9

If x and y are independent random variables, E(xy)

Question # 10

F (+∞) is always equal to:

Question # 11

Which of the following is suitable for discrete probability distribution.

Question # 12

If a Vann diagram is drawn for events A and B which are mutually exclusive, which f the folloiwng would always be true of A and B.

Question # 13

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

Question # 14

Why are the outcomes of a coin tossing mutually exclusive.

Question # 15

Probability distribution of a continuous random variable can be presented by

Question # 16

The simple probability of occurrence of an event in called the.

Question # 17

 Var (3x+2)

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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 When two dice are rolled, the maximum totla on the two faces of dice will be.
A. 2
B. 6
C. 12
D. 36
2 If mean = 25 and variance is also 25, then coefficient of variation is
A. 100%
B. 25%
C. 20%
D. 10%
3 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
4 If x is a random variable with E(x) = 5 then E(3x - 2) =
A. 0
B. 1
C. 13
D. All of them
5 The probability of getting two red balls with replacement from a bag containing 4 red, 3 white and 3 black balls is.
A. 4/25
B. 1/25
C. 9/100
D. 2/25
6 A set of numerical values assigned to a sample space is called.
A. Random sample
B. Random variable
C. Random numbers
D. Random experiment
7 the collection of all possible outcome of a random experimnet is called.
A. Sample point
B. Sure event
C. sample event
D. simple event
8 A random variable is also called.
A. Chance variable
B. Stochastic variable
C. Discrete variable
D. Both A and B
9 Which is the impossible event when a dice is rolled.
A. 5 or 6
B. 6 or 7
C. 2 or 3
D. 1
10 F(-∞) is always equal to.
A. Zero
B. One
C. Two 
D. Negative one

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