MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
________ function carries out a chi-square test. |
| A. | chisq.test() |
| B. | t.test() |
| C. | prop.test() |
| D. | fisher.test() |
| Answer» B. t.test() | |
| 2. |
Which of the following is used to view dataset in a spreadsheet-type format ? |
| A. | Disp() |
| B. | View() |
| C. | Seq() |
| D. | lm() |
| Answer» C. Seq() | |
| 3. |
Which of the following builds empirical cumulative distribution function? |
| A. | ecdf() |
| B. | cum |
| C. | cumsum |
| D. | lm() |
| Answer» B. cum | |
| 4. |
Which of the following is lattice command for producing a scatterplot? |
| A. | plot() |
| B. | lm() |
| C. | xyplot() |
| D. | anova() |
| Answer» D. anova() | |
| 5. |
Which of the following compute proportions from a contingency table? |
| A. | par() |
| B. | prop.table() |
| C. | anova() |
| D. | mosaicplot() |
| Answer» C. anova() | |
| 6. |
which of the following statement make a mosaic plot? |
| A. | histogram() |
| B. | mosaicplot() |
| C. | bar() |
| D. | which.max(x) |
| Answer» C. bar() | |
| 7. |
Which of the following groups find the correlation matrix? |
| A. | factor.model |
| B. | col.max(x) |
| C. | stem |
| D. | which.max(x) |
| Answer» B. col.max(x) | |
| 8. |
Which of the following function cross-tabulate tables using formulas? |
| A. | table |
| B. | stem |
| C. | xtabs |
| D. | read |
| Answer» E. | |
| 9. |
Which of the following finds the position of a quantile in a dataset? |
| A. | quantile() |
| B. | barplot() |
| C. | barchart() |
| D. | rep() |
| Answer» B. barplot() | |
| 10. |
Which of the following method make vector of repeated values? |
| A. | rep() |
| B. | data() |
| C. | view() |
| D. | read() |
| Answer» C. view() | |