MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Data Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Cumulative distribution functions are used to specify the distribution of multivariate random variables. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following random variables are the default model for random samples? |
| A. | iid |
| B. | id |
| C. | pmd |
| D. | all of the mentioned |
| Answer» B. id | |
| 3. |
Chebyshev’s inequality states that the probability of a “Six Sigma” event is less than ___________ |
| A. | 10% |
| B. | 20% |
| C. | 30% |
| D. | 3% |
| Answer» E. | |
| 4. |
For continuous random variables, the CDF is the derivative of the PDF. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following inequality is useful for interpreting variances? |
| A. | Chebyshev |
| B. | Stautaory |
| C. | Testory |
| D. | All of the mentioned |
| Answer» B. Stautaory | |
| 6. |
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 |
| Answer» B. standard deviation | |
| 7. |
WHICH_OF_THE_FOLLOWING_RANDOM_VARIABLES_ARE_THE_DEFAULT_MODEL_FOR_RANDOM_SAMPLES_??$ |
| A. | iid |
| B. | id |
| C. | pmd |
| D. | all of the Mentioned |
| Answer» B. id | |
| 8. |
Cumulative_distribution_functions_are_used_to_specify_the_distribution_of_multivariate_random_variables.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Chebyshev’s inequality states that the probability of a “Six Sigma” event is less than ?# |
| A. | 10% |
| B. | 20% |
| C. | 30% |
| D. | 3% |
| Answer» E. | |
| 10. |
For continuous random variables, the CDF is the derivative of the PDF |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Which of the following inequality is useful for interpreting variances ? |
| A. | Chebyshev |
| B. | Stautaory |
| C. | Testory |
| D. | All of the Mentioned |
| Answer» B. Stautaory | |
| 12. |
The square root of the variance is called the ________ deviation. |
| A. | empirical |
| B. | mean |
| C. | Continuous |
| D. | standard |
| Answer» E. | |
| 13. |
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 |
| Answer» B. standard deviation | |
| 14. |
The expected value or _______ of a random variable is the center of its distribution. |
| A. | mode |
| B. | median |
| C. | mean |
| D. | bayesian inference |
| Answer» D. bayesian inference | |