
PS_CH-2_QB
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40 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
A random variable is also called
Constant
Variable
Attribute
Chance Variable
2.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
Suppose, four coins are tossed, the value of a random variable H (No. of heads) is:
1,2,3,4
0,1,2,3,4
0,1,2,3
0,1
3.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
If x is a discrete random variable, the function f(x) is
Distribution function
Probability function
Density function
None of these
4.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
The sum of probabilities of a discrete random variable is
Zero
Four
Three
One
5.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
A random variable assuming only a finite number of values is called:
Discrete random variable
Continuous random variable
Random variable
None of these
6.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
Height measurements of 50 students studying in a college
Discrete variable
Random variable
Constant
Continuous variable
7.
MULTIPLE CHOICE QUESTION
20 sec β’ 10 pts
The number of students in a class is an example of
Continuous variable
Discrete variable
Definite variable
None of these
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