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Online Tests
Statistics Ics Part 1 Chapter 7 Online Test MCQs With Answers
Question # 1
If a is a constant then E(a) is equal to
Choose an answer
a
Square of a
Zero
2a
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Question # 2
If x and y are independent random variables, E(xy)
Choose an answer
E(XY)
xE(y)
E(XY)
E(X) . E(Y)
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Question # 3
The coins are tossed, the porbability of two tails is euql to.
Choose an answer
1/2
1/4
3/4
1
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Question # 4
The probability of red card out of 52 cards is.
Choose an answer
1/4
1/2
4/52
zero
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Question # 5
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.
Choose an answer
Theire parts of the rectangle will overlap
Their parts fo the rectangle will be equal in area
Their parts of the rectangle will not overlap
None of these
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Question # 6
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.
Choose an answer
0.1
0.4
0.6
1.0
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Question # 7
If x is a random variable with E(x) = 5 then E (3x - 2) =
Choose an answer
0
1
13
15
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Question # 8
The Area of trapezoid is equal to:
Choose an answer
sum of paralled sides x base
sum of paralled sides x base/2
2 x base x sum of paralled side
Sum of paralled sides x base/4
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Question # 9
The probability of an event connot be.
Choose an answer
= 0
> 0
=1
< 0
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Question # 10
Waht is the probability that a ball drawn at random from the bag is.
Choose an answer
0.1
0.4
1.0
Cannot be determined from given information
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Question # 11
The probability of an impossible event is.
Choose an answer
Positive
Zero
Negative
1
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Question # 12
Which of the following is suitable for discrete probability distribution.
Choose an answer
Frequency polygon
Probability
Ogive
Histogram
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Question # 13
Var (3x+2)
Choose an answer
3Var(x) + 2
9Var(x) +2
Var (x) + 0
3Var (X)
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Question # 14
When two coins are tossed simulataneously the probability of at most one head is.
Choose an answer
1/2
1/4
3/4
None of these
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Question # 15
The simplest form of the continuous distribution is the.
Choose an answer
Skewed distribution
Kurtic distribution
Binomial distribution
Uniform distribution
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Question # 16
If x is a random variable with E(x) = 5 then E(3x - 2) =
Choose an answer
0
1
13
All of them
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Question # 17
E(x) = Σxf(x) if it ________ absolutely.
Choose an answer
Equal
Converges
Discrete
None of these
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Question # 18
Var (B/aX) =?
Choose an answer
1/aVar(X)
b
2
/a
2
Var(X)
b
2
/a Var(X)
None of these
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