81. Point out the wrong statement?
82. What will be the output of the following R code?
> x <- matrix(1:6, 2, 3)
> x[1, 2]
> x <- matrix(1:6, 2, 3)
> x[1, 2]
83. Individual R objects can be saved to a file using the . . . . . . . . function.
84. Point out the correct statement?
85. If you have a lot of objects that you want to save to a file, we use . . . . . . . . function.
86. Multiple objects can be de parsed at once using the . . . . . . . . function.
87. When you call serialize() on an R object, the output will be . . . . . . . . coded in hexadecimal format.
88. Which of the following code extracts 1st element of the 2nd element?
> x <- list(a = list(10, 12, 14), b = c(3.14, 2.81))
> x <- list(a = list(10, 12, 14), b = c(3.14, 2.81))
89. Which of the following object is masked from 'package: stats'?
90. What will be the output of the following R code?
> x <- list(aardvark = 1:5)
> x[["a", exact = FALSE]]
> x <- list(aardvark = 1:5)
> x[["a", exact = FALSE]]
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