MCQs On Big Data |
Data Analytics With R | Weka Machine Learning
1. ______ programming language is a dialect of S.
- B
- C
- R
- K
Answer: 3 : R
2. Point out the wrong statement?
- R is a language for data analysis and graphics
- K is a language for statistical modelling and graphics
- One key limitation of the S language was that it was only available in a commercial package, S-PLUS
- C is a language for data and graphics
Answer: 2 : K is a language for statistical modelling and graphics
3. R functionality is divided into a number of ________.
- Packages
- Functions
- Domains
- classes
Answer: 1 : Packages
4. Which package contains most fundamental functions to run it?
- root
- child
- base
- parent
Answer: 3 : base
5. Which of the following is used for Statistical analysis in R language?
- RStudio
- Studio
- Heck
- KStudio
Answer: 1 : RStudio
6. Which language is best for the statistical environment?
- C
- R
- Java
- Python
Answer: 2 : R
7. R has many functions regarding _______.
- Statistical, Biotechnology
- Probability, Microbiology
- distribution, Physics
- Statistics, Probability, Distributions
Answer: 4 : Statistics, Probability, Distributions
8. _______ hosts many add-on packages that can be used to extend the functionality for R.
- CRAN
- GNU
- R studio
- 450
Answer: 1 : CRAN
9. Files containing R scripts ends with extension _________.
- .S
- .R
- .Rp
- .SP
Answer: 2 : .R
10. Collection of objects currently stored in R is called as _______.
- package
- workspace
- list
- task
Answer: 2 : Workspace
11. To select columns ( variables) _______ function is used.
- Select()
- filter()
- mutate()
- summarise()
Answer: 1 : Select()
12. To filter(subset) rows _____ functions is used.
- Select()
- filter()
- mutate()
- dummarise()
Answer: 2 : filter()
13. To create new variables ______ function is used.
- Select()
- filter()
- mutate()
- dummarise()