R Programming MCQs with answers Page - 20

Dear candidates you will find MCQ questions of R Programming here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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Q. 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
💬 Discuss
✅ Correct Answer: (C) Data types

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. 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
💬 Discuss
✅ Correct Answer: (B) Data frames

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. What will be the output of the following R code?
> x <- c("a", "b", "c")
> as.logical(x)

  • (A) a b c
  • (B) NA NA NA
  • (C) 0 1 2
  • (D) 6 8 9
💬 Discuss
✅ Correct Answer: (B) NA NA NA

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. Lists can be created using the . . . . . . . . function.

  • (A) Matrix.li
  • (B) Matrix.lists
  • (C) Lists.matric
  • (D) List
💬 Discuss
✅ Correct Answer: (D) List

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. Joining two lists can be achieved either using the . . . . . . . . function.

  • (A) Concat
  • (B) Join
  • (C) Reduce
  • (D) Delete
💬 Discuss
✅ Correct Answer: (A) Concat

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. R objects can have attributes, which are like . . . . . . . . for the object.

  • (A) metadata
  • (B) features
  • (C) expression
  • (D) dimensions
💬 Discuss
✅ Correct Answer: (A) metadata

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. Factors are created using the . . . . . . . . function.

  • (A) C()
  • (B) Function()
  • (C) Array()
  • (D) Lists()
💬 Discuss
✅ Correct Answer: (B) Function()

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. First component of the list can be accessed by . . . . . . . .

  • (A) Name of the component
  • (B) List name
  • (C) Function
  • (D) Package
💬 Discuss
✅ Correct Answer: (A) Name of the component

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. Which function is used to enter in data at the terminal?

  • (A) Scanned
  • (B) Scnn
  • (C) Scan
  • (D) Sccn
💬 Discuss
✅ Correct Answer: (C) Scan

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

Q. Which are indexed by either row or column using a specific name or number?

  • (A) Datasets
  • (B) Data frames
  • (C) Data
  • (D) Functions
💬 Discuss
✅ Correct Answer: (B) Data frames

Published by Mr. Dubey ⭐ 111.42K Points at 21-Apr-2024 10:10 am in R Programming

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