First Year ICS Statistics Chapter 8 Online MCQ Test (Probability Distributions)

This online test contains MCQs about following topics:

Introduction to probability distributions . Probility mass function . Probabilty density function . Simple univariate discrete and continuous distributions . Drawing of probability mass function and probability density function . Expectation and variance of the simple discrete random variable . Distribution function

ICS Part 1 Statistics Chapter 8 Test

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MCQ's Test For Chapter 8 "Statistics Ics Part 1 Chapter 8 Online Test"

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Statistics Ics Part 1 Chapter 8 Online Test

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Question # 1

A fair die is rolled three times. The probability of getting three "aces" is

Question # 2

When we draw the sample with replacement (the first sample is replaced before the next draw), the probability distribution to be used is:

Question # 3

Random numbers can be generated mechanically by

Question # 4

The probability of success ------------ from one trial to another when trials are dependent

Question # 5

Binomial distribution is positively skewed

Question # 6

The number of possible outcomes in Bernoulli trial is

Question # 7

Which of the following distribution(s) has 3 parameters.

Question # 8

The expected value of a discrete random variable is.

Question # 9

Binomial distribution is used when n is

Question # 10

The binomial distribution is symmetrical if

Question # 11

Which of the following is true for binomial distribution

Question # 12

An expected value of a random variable is equal to its.

Question # 13

Hypergeometric distribution is a

Question # 14

The probability of success changes from trial to trial, is the property of:

Question # 15

The binomial distribution is symmetrical when:

Question # 16

If X and Y are random varaibes, than E ( X - Y) is equal to.

Question # 17

Probility density function is the probebilyt function of.............. random variable.

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ICS Part 1 Statistics Chapter 8 MCQs Test

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ICS Part 1 Statistics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If x is a continuous random vriable, then the function f (x) is.
A. A probability function
B. A probability denaity function
C. A density function
D. Both b and c
2 In binomial distribution, the random variable  has a range:
A. 0,1,2...................n
B. 0,1,2,......+∞
C. -∞ to +∞
D. ∞ to +0
3 When we draw the sample with replacement (the first sample is replaced before the next draw), the probability distribution to be used is:
A. Binomial
B. Hypergeometric
C. Both Binomial & hypergeometric
D. None of these
4 if X and Y are independent random varaibesl the S.D. (X-Y) is equal to
A. Var (X) - var (Y)
B. Var (X) + Var (Y)
C. E(X-Y)2
D. E(X + Y)2
5 The binomial distribution deal with:
A. Discrete variable
B. Continuous variable 
C. None of these
6 When X denotes the number of success in binomial experiment, it is called.
A. Random variable
B. Binomial random variable
C. Continuous random variable
D. Both (B) and (C) but not (A)
7 The binomial distribution is symmetrical if
A. p = 1/2
B. P > 1/2
C. p < 1/3
D. P ≠ q
8 If C is a non -random variabe than E (C) is.
A. c
B. 0
C. 1
D. x
9 The probability of even/odd number when a fair die rolled is:
A. 1/6
B. 2/6
C. 1/36
D. 3/6
10 Binomial distribution is used when n is
A. Large
B. Small
C. Negative
D. Zero

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