Question

Suppose I have a list defined as x <- list(2, "a", "b", TRUE). What does x[[2]] give me?

Answer 1

x[[2]] is used to access a specific element within a list by its index. The index of the first element in a list is 1, the second element has an index of 2, and so on. So in this case, x[[2]] is used to access the element at the second index, which is "a" in the list x <- list(2, "a", "b", TRUE).

Answer 2

x is a list defined as x <- list(2, "a", "b", TRUE). Accessing an element of a list using square brackets with an index inside, in this case, x[[2]] will return the second element of the list. In this case, x[[2]] would return "a".

Step-by-step explanation: