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MA1473 - PROBABILITY & STATISTICS Flashcards | StudBud
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MA1473 - PROBABILITY & STATISTICS
MA1473 - PROBABILITY & STATISTICS
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StudBud Administration
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Unit I
Flashcards
10 cards
F
Practice quiz
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Host live
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Questions
10
Answers
1
In a Binomial Distribution, the mean and variance are equal.
False
True
2
Mutually Exclusive events ___________
Contain all common sample points
Contain all sample points
Does not contain any common sample point
Does not contain any sample point
3
Variance of a random variable X is given by _________
E[X2]+(E[X])2
E[2X]-E[X2]
(E[X])2--E[X2]
E[X2]-(E[X])2
4
In a Poisson disrtibution, Mean and variance are equal
False
True
5
In a Binomial Distribution, if p = q, then P(X = x) is given by?
nCx(p)n-x
nCx(0.5)x
nCx(0.5)n
nCx(p)x
6
Mean of a random variable X is given by _________
E[2X]
E[X]
E[X2]
(E[X])2
7
Poisson distribution is applied for ___________
Irregular Random Variable
UncertainRandom Variable
Discrete Random Variable
Continuous Random Variable
8
If X then variance is given by __
np
npq
np2
nq
9
Total probability theorem is used in Baye’s theorem.
False
True
10
If P(B⁄A) = P(B), then P(A ∩ B) = ____________
P(A)
P(A).P(B)
P(B)
P(A)+P(B)
