Interview question based on skill :
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Total Questions: 10
1. For continuous random variables, the CDF is the derivative of the PDF
Correct Answer is : FALSE
2. Cumulative distribution functions are used to specify the distribution of multivariate random variables.
Correct Answer is : TRUE
3. he expected value or _______ of a random variable is the center of its distribution.
Correct Answer is : mean
4. Point out the correct statement:
Correct Answer is : None of the Mentioned
5. Which of the following of a random variable is a measure of spread ?
Correct Answer is : variance
6. The square root of the variance is called the ________ deviation.
Correct Answer is : standard
7. Point out the wrong statement:
Correct Answer is : R cannot approximate quantiles for you for common distributions
8. Which of the following inequality is useful for interpreting variances ?
Correct Answer is : Chebyshev
9. Chebyshev’s inequality states that the probability of a “Six Sigma” event is less than :
Correct Answer is : 0.03
10. Which of the following random variables are the default model for random samples ?
Correct Answer is : iid
