A . . . . . . . . is a set of elements appearing in rows and columns where the elements are of the same mode whether they are logical, numeric (integer or double), complex or character.

What symbol is used for assignment in R?

A. <-

B. =

C. ->

D. assign()

What does the function print() do in R?

A. Display the result of a calculation

B. Read input from the user

C. Plot a graph

D. Install a package

In R, how is a variable assigned a value?

A. set

B. =

C. ->

D. assign()

What is the purpose of the seq() function in R?

A. Create a sequence of numbers

B. Sort a vector

C. Merge two data frames

D. Compute the mean of a numeric vector