Data Structures in R Programming MCQ question and answer with solution | R Programming MCQs

A. List

B. Matrix

C. Data Frame

D. Vector

A. A list of elements

B. A one-dimensional array

C. A two-dimensional array

D. A data frame

A. my_list <- c(1, "hello", TRUE)

B. my_list = list(1, "hello", TRUE)

C. my_list(1, "hello", TRUE)

D. list(my_list = c(1, "hello", TRUE))

A. List

B. Matrix

C. Data Frame

D. Array

A. Vectors can only store numeric values

B. Lists can store elements of different types

C. Lists can only store characters

D. Vectors can store elements of different types

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

B. matrix(c(1, 2, 3, 4, 5, 6, 7, 8, 9), 3, 3)

C. matrix(1:9, rows = 3, cols = 3)

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

A. factor(color, levels = c("red", "green", "blue"))

B. factor(color, levels = "red", "green", "blue")

C. factor(color = c("red", "green", "blue"))

D. factor(color = c("red", "green", "blue"), levels = c("red", "green", "blue"))

A. Create a vector

B. Create a data frame

C. Create a matrix

D. Create a list

A. list("apple", "orange", "banana")

B. named_list(c("apple", "orange", "banana"))

C. list(c("apple", "orange", "banana"))

D. list(elements = c("apple", "orange", "banana"))

A. my_vector(2)

B. my_vector[2]

C. my_vector.2

D. my_vector[[2]]