Using the . . . . . . . . vector, we create a species factor and bind it to the columns of iris.df.

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