Question

What is NaN called?

(a) Not a Number

(b) Not a Numeric

(c) Number and Number

(d) Number a Numeric

Answer 1

Correct answer is (a) Not a Number

For explanation I would say: NaN is called Not a Number. It is the full form of NaN. Full forms can be viewed in R studio by typing help. A NaN value is also NA but the converse is not true. The value NaN represents an undefined value.