Probability Interview Questions | Snaprecruit.com
Probability Interview Questions | Snaprecruit.com
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Total Questions: 10
1. For continuous random variables, the CDF is the derivative of the PDF
A. TRUE
B. FALSE
C.
D.
Show Correct Answer
Correct Answer is :
FALSE
2. Cumulative distribution functions are used to specify the distribution of multivariate random variables.
A. TRUE
B. FALSE
C.
D.
Show Correct Answer
Correct Answer is :
TRUE
3. he expected value or _______ of a random variable is the center of its distribution.
A. mode
B. median
C. mean
D. bayesian inference
Show Correct Answer
Correct Answer is :
mean
4. Point out the correct statement:
A. Some cumulative distribution function F is non-decreasing and right-continuous
B. Every cumulative distribution function F is decreasing and right-continuous
C. Every cumulative distribution function F is increasing and left-continuous
D. None of the Mentioned
Show Correct Answer
Correct Answer is :
None of the Mentioned
5. Which of the following of a random variable is a measure of spread ?
A. variance
B. standard deviation
C. empirical mean
D. all of the Mentioned
Show Correct Answer
Correct Answer is :
variance
6. The square root of the variance is called the ________ deviation.
A. empirical
B. mean
C. Continuous
D. standard
Show Correct Answer
Correct Answer is :
standard
7. Point out the wrong statement:
A. A percentile is simply a quantile with expressed as a percent
B. There are two types of random variable
C. R cannot approximate quantiles for you for common distributions
D. None of the Mentioned
Show Correct Answer
Correct Answer is :
R cannot approximate quantiles for you for common distributions
8. Which of the following inequality is useful for interpreting variances ?
A. Chebyshev
B. Stautaory
C. Testory
D. All of the Mentioned
Show Correct Answer
Correct Answer is :
Chebyshev
9. Chebyshev’s inequality states that the probability of a “Six Sigma” event is less than :
A. 0.1
B. 0.2
C. 0.3
D. 0.03
Show Correct Answer
Correct Answer is :
0.03
10. Which of the following random variables are the default model for random samples ?
A. iid
B. id
C. pmd
D. all of the Mentioned
Show Correct Answer
Correct Answer is :
iid
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