R Programming MCQs with answers Page - 5

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📊 R Programming
Q. A single element of a character vector is referred as . . . . . . . .
  • (A) Character string
  • (B) String
  • (C) Data strings
  • (D) Raw data
💬 Discuss
✅ Correct Answer: (A) Character string
📊 R Programming
Q. What will be the output of the following R program?
r<-0:10
r[2]
  • (A) 0
  • (B) 1
  • (C) 2
  • (D) 3
💬 Discuss
✅ Correct Answer: (B) 1
📊 R Programming
Q. Which Package contains most fundamental functions to run R?
  • (A) root
  • (B) child
  • (C) base
  • (D) parent
💬 Discuss
✅ Correct Answer: (C) base
📊 R Programming
Q. R is technically much closer to the Scheme language than it is to the original . . . . . . . . language.
  • (A) B
  • (B) C
  • (C) C++
  • (D) S
💬 Discuss
✅ Correct Answer: (D) S
📊 R Programming
Q. What is NaN called?
  • (A) Not a Number
  • (B) Not a Numeric
  • (C) Number and Number
  • (D) Number a Numeric
💬 Discuss
✅ Correct Answer: (A) Not a Number
📊 R Programming
Q. What will be the output of the following R function?
Sys.time()
  • (A) Tomorrow date and time
  • (B) Present date and time
  • (C) Some date
  • (D) Yesterday date and time
💬 Discuss
✅ Correct Answer: (B) Present date and time
📊 R Programming
Q. Version of R released to the public in 2000 was . . . . . . . .
  • (A) 1.0.0
  • (B) 1.0.3
  • (C) 2.0.1
  • (D) 1.1.0
💬 Discuss
✅ Correct Answer: (A) 1.0.0
📊 R Programming
Q. At higher level one "limitation" of R is that its functionality is based on . . . . . . . .
  • (A) Consumer demand
  • (B) User contributions
  • (C) User contributions and Consumer demand
  • (D) Lower level contributions
💬 Discuss
✅ Correct Answer: (C) User contributions and Consumer demand
📊 R Programming
Q. What will be the output of the following R program?
y <- 0:5
vector(y)
y[3]
  • (A) Error in vector(y): invalid 'mode' argument
  • (B) 1
  • (C) 4
  • (D) 3
💬 Discuss
✅ Correct Answer: (A) Error in vector(y): invalid 'mode' argument
📊 R Programming
Q. . . . . . . . . hosts many add-on packages that can be used to extend the functionality of R.
  • (A) CRAN
  • (B) GNU
  • (C) R studio
  • (D) 450
💬 Discuss
✅ Correct Answer: (A) CRAN

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