11. The . . . . . . . . function returns a list of all the formal arguments of a function.
12. What will be the output of the following R code?
> x <- list(a = 1:4, b = rnorm(10), c = rnorm(20, 1), d = rnorm(100, 5))
> sapply(x, mean)
> x <- list(a = 1:4, b = rnorm(10), c = rnorm(20, 1), d = rnorm(100, 5))
> sapply(x, mean)13. Which function is used to create a histogram for visualisation in R programming language?
14. . . . . . . . . function is used to apply an expression for a given dataset.
15. . . . . . . . . function is used in applying a function each level of factors.
16. The recover() function will first print out the function call stack when an . . . . . . . . occurs.
17. The cumulative frequency distribution of a categorical variable can be checked using the . . . . . . . . function in R language.
18. R uses . . . . . . . . scoping6 0 or static scoping.
19. R has . . . . . . . . statements that provide explicit looping.
20. Point out the wrong statement?
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