The magrittr package adds a set of tools called pipes to R. We need it for this

The magrittr package adds a set of tools called pipes to R. We need it for this exam: install.packages(“magrittr”).
Rewrite the following function calls using pipes, with x <- 1:8 (and submit in the plain text the solutions): 1. add a new variable rev_per_minute using a pipe (below is how it is done without pipe so it has to be replaced) age <- c(28, 48, 47, 71, 22, 80, 48, 30, 31) purchase <- c(20, 59, 2, 12, 22, 160, 34, 34, 29) visit_length <- c(5, 2, 20, 22, 12, 31, 9, 10, 11) bookstore <- data.frame(age, purchase, visit_length) 2. sqrt(mean(x)) 3. assign("x", 25) 4. sort(x^2+5)[1:2] Attached grading rubric