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

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

Question # 2

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

Question # 3

Mean of hypergeometric distribution is

Question # 4

In a discriete probability distribution the sum of all the probabilities is alwyas

Question # 5

If we do not replace the draw cards back into the pack before the next draw, the used probability distribution will be:

Question # 6

If in binomial distribution, μ = 6, p = 3/5, the number of trial are:

Question # 7

The parameters of hypergeometric distribution are:

Question # 8

The expected value of a discrete random variable is.

Question # 9

A copntinuous probability distribution may be represented by.

Question # 10

When X denotes the number of success in binomial experiment, it is called.

Question # 11

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

Question # 12

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

Question # 13

The binomial distribution has the following parameters.

Question # 14

if X and Y are independent random varaibesl the S.D. (X-Y) is equal to

Question # 15

Each trial of binomial experiment results in an outcome which can be classified in two categories

Question # 16

If x is a continuous random vriable, then the function f (x) is.

Question # 17

Random numbers can be generated mechanically by

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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 The parameters of hypergeometric distribution are:
A. n,k & p
B. n, k & q
C. n, p & q
D. n, k &  N
2 Each trial of binomial experiment results in an outcome which can be classified in two categories
A. Head or tail
B. Ace or six
C. Success and failure
D. None of these
3 The binomial distribution is symmetrical when:
A. P > q
B. p = 1/2
C. Probability of success & probability of failure are  equal
D. Both (B) and (C)
4 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
5 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
6 If in binomial distribution, μ = 6, p = 3/5, the number of trial are:
A. 18
B. 30
C. 10
D. None of these
7 The mean of binomial distribution is always:
A. Equal to variance
B. Less than variance
C. Greater then variance
D. None of the these
8 Which of the following case is true for hypergeometric distribution.
A. Probability remains constant for all trials
B. Probability changes
C. successive trials are dependent
D. Both (B) and (C) but not (A)
9 If we do not replace the draw cards back into the pack before the next draw, the used probability distribution will be:
A. Binomial
B. Hypergeometric
C. Both binomial &  hypergeometric 
D. None of these
10 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)

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