Tick the correct output.

> sqrt(-17)

What suffix do you need if you want to specify it's Integer?

Which of the following is a library for statistical quality control?

The functionality of R is divided into a number of packages.

Which of the following sorting techniques is there in R?

Which is the main way to read the data back in (parse it) using the R function?

How are missing values and impossible values represented in the R programming language?

Tick the correct statement.

Which of the following functions can be used to read a tab or space-delimited file?

Which of the following statements about NaN and NA values is incorrect?