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Lecture #3 - Univariate statistics and probability theory Flashcards | StudBud
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Lecture #3 - Univariate statistics and probability theory
Lecture #3 - Univariate statistics and probability theory
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StudBud Administration
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#probability #man #variance #moment
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Questions
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Answers
1
What is the probability of getting a 4 side up in a regular 6-face die?
0.1
0.4
0.16666666666666666666666666666666
0.5
2
The skewness of this PDF is:
k=0
k>0
k=20
k<0
3
What is the Matlab command to generate a random variable from a standard normal distribution?
rand
randn
datasample
randi
4
What is the command to generate 1 sample from a random variable of mean 3 and st. dev. 2 in Matlab
3+2*randn(1000,1)
2+3*randn(1000,1)
3+2*randn(100,7)
datasample([1 2 3 4],2)
5
The probability of an event is a real number in the range:
[0, 1]
[-1, 1]
[-∞, +∞]
]0, +∞]
6
A standard normal distribution (μ=0 and st. dev.=1) typically has almost all the values in:
[-1, 1]
[0, 1]
R2
[-4, 4]
