MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your R Programming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The data type of the R-object becomes the data type of the ________ |
| A. | Functions |
| B. | Packages |
| C. | Variables |
| D. | Lists |
| Answer» D. Lists | |
| 2. |
On what basis of a variable, OS allocates memory and decides what can be stored in the reserved memory? |
| A. | Data bases |
| B. | Data sets |
| C. | Data types |
| D. | Lists |
| Answer» D. Lists | |
| 3. |
An ordered factor is used to represent an __________ |
| A. | Ordinal variable |
| B. | Simple variable |
| C. | Coordinal variable |
| D. | Biordinal variable |
| Answer» B. Simple variable | |
| 4. |
The ________ stores the nominal values as a vector of integers in the range of 1 to unique values in the nominal variable. |
| A. | Factor |
| B. | Matrix |
| C. | Lists |
| D. | Functions |
| Answer» B. Matrix | |
| 5. |
An ordered collection of objects or components are called ________ |
| A. | Data frames |
| B. | Datasets |
| C. | Databases |
| D. | Lists |
| Answer» E. | |
| 6. |
Which is more general than a matrix, in that different columns can have different modes? |
| A. | Data types |
| B. | Data frames |
| C. | Data sets |
| D. | Databases |
| Answer» D. Databases | |
| 7. |
________ are similar to matrices but can have more than two dimensions. |
| A. | Functions |
| B. | Packages |
| C. | Arrays |
| D. | Columns |
| Answer» D. Columns | |
| 8. |
___________ provides optional labels with the columns and rows. |
| A. | Disnames |
| B. | Dimnames |
| C. | Denmes |
| D. | Demnesd |
| Answer» C. Denmes | |
| 9. |
All columns in a matrix must have the same mode and the _________ length. |
| A. | Different |
| B. | Same |
| C. | May be the same |
| D. | May be different |
| Answer» C. May be the same | |