Q. Functions are defined using the _________ directive and are stored as R objects.

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Q. Point out the wrong statement?

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Q. Which of the following R code will print “Hello, world!”?

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Q. Point out the correct statement?

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Q. The __________ function returns a list of all the formal arguments of a function.

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Q. Point out the wrong statement?

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Q. You can check to see whether an R object is NULL with the _________ function.

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Q. Which of the following code will print NULL?

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Q. R Commander is used to ___________ in R.

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Q. Two vectors M and N are defined as M <- c(3, 2, 4) and N <- c(1, 2). What will be the output of vector Z that is defined as Z <- M*N.

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Q. How missing values and impossible values are represented in R language?

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Q. CRAN package ecosystem has more than ______ packages.

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Q. Which function in R language is used to find out whether the means of 2 groups are equal to each other or not?

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Q. __________ is the best way for communicating the results of data analysis using the R language.

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Q. How many types of data structures does R language have?

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Q. __________ is the easiest method for reshaping the data before analysis.

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Q. ___________ function is used to apply an expression for a given dataset.

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Q. __________ package is used to speed up data frame management code.

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Q. Which package can be integrated with dplyr for large fast tables?

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Q. In the base graphics system, which function is used to add elements to a plot?

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