1. Which of the following extracts first element from the following vector ? > x <- c(”a”, “b”, “c”, “c”, “d”, “a”) a) x[10]. b) x[1]. c) x[0]. d) None of the mentioned AnswerAnswer: b [Reason:] Vectors are basic objects in R and they can be subsetted using the [ operator. 2. Point out the…
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