Random variables are defined using the distr package.

Which of the following functions generates a warning?

In R, numbers are generally treated as _______ precision real numbers.

To bind a row onto an already existing matrix, the ______ function can be used.

which of the following is used for outputting a textual representation of an R object?

The function that adds marginal sums to an existing table is _____.

A single element of a character vector is referred to as _____.

On which data types in R can binary operators be applied?

dplyr can be integrated with the data.table package for large fast tables.

What is the output of the following R code?

> x <- c("a", "b", "c", "d")
> for(i in 1:4) {
print(x[i])
}