MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
cov and corr supports the optional min_periods keyword. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following can potentially change the dtype of a series? |
| A. | reindex_like |
| B. | index_like |
| C. | itime_like |
| D. | none of the mentioned |
| Answer» B. index_like | |
| 3. |
Which of the following method produces a data ranking with ties being assigned the mean of the ranks for the group? |
| A. | rank |
| B. | dense_rank |
| C. | partition_rank |
| D. | none of the mentioned |
| Answer» B. dense_rank | |
| 4. |
rolling_count function gives the number of non-null observations. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following is implemented on DataFrame to compute the correlation between like-labeled Series contained in different DataFrame objects? |
| A. | corrwith |
| B. | corwith |
| C. | corwit |
| D. | none of the mentioned |
| Answer» B. corwith | |
| 6. |
Which of the following specifies the required minimum number of observations for each column pair in order to have a valid result? |
| A. | min_periods |
| B. | max_periods |
| C. | minimum_periods |
| D. | all of the mentioned |
| Answer» B. max_periods | |
| 7. |
Which of the following object has a method cov to compute covariance between series? |
| A. | Series |
| B. | DataFrame |
| C. | Panel |
| D. | None of the mentioned |
| Answer» B. DataFrame | |
| 8. |
Which of the following is used to compute the percent change over a given number of periods? |
| A. | pct_change |
| B. | percent_change |
| C. | per_change |
| D. | none of the mentioned |
| Answer» B. percent_change | |