Introduction to R Programming MCQ question and answer with solution | R Programming MCQs

A. Web Development

B. Data Analysis

C. Game Development

D. Mobile App Development

A. Returns the sum of elements

B. Returns the number of elements

C. Sorts the elements

D. Computes the mean

A. // Comment

B. /* Comment */

C. # Comment

D. -- Comment

A. Load a package

B. Uninstall a package

C. Install a new package

D. Update all packages

A. 123_variable

B. variable_name_123

C. my-variable

D. 1st_variable

A. A programming language

B. An integrated development environment

C. A statistical model

D. A data storage format

A. matrix(1:9, nrow = 3, ncol = 3)

B. create.matrix(1:9, rows = 3, columns = 3)

C. [1, 2, 3; 4, 5, 6; 7, 8, 9]

D. mat(1:9, 3, 3)

A. Display current date and time

B. Extract system information

C. Retrieve the current date

D. Convert date to character

A. String

B. Boolean

C. Complex

D. All of the above

A. df <- c(1, 2, 3)

B. data.frame(x = 1:3, y = c('A', 'B', 'C'))

C. createDataFrame(1, 2, 3)

D. matrix(1:3, nrow = 1, ncol = 3)