Q.1
What will be the output of the following R code? x <- c(NA,y <- c(NA, x + y
  • Symbol
  • Missing data
  • 5
  • 15.5
Q.2
R was named partly after the first names of____R authors?
  • One
  • Two
  • Three
  • Four
Q.3
__________ function is used to watch for all available packages in library.
  • lib()
  • fun.lib()
  • libr()
  • library()
Q.4
Predictive analysis is the branch of __________analysis?
  • Core
  • Advanced
  • Both
Q.5
In R studio, Scripts will run on ___________________
  • Script editors
  • Console
  • Terminal
  • GCC compiler
Q.6
The following block for loop is for the _ programming language:
  • C
  • R
  • JS
  • None of these
Q.7
Which one is true about R packages ? (the answer can be more than one)
  • (a), (c), (d), (b)
  • (a), (c), (b), (d)
  • (d), (b), (c), (a)
  • (b), (a), (b), (d)
Q.8
Choose the following statement that is false about Bioconductor!
  • Most Bioconductor components are not distributed as R packages
  • open source
  • provide tools for the analysis and comprehension of high-throughput genomic data.
  • None of these
Q.9
The broad goals of the Bioconductor project are....
  • To provide widespread access to a broad range of powerful statistical and graphical methods for the analysis of genomic data.
  • To further scientific understanding by producing high-quality documentation and reproducible research.
  • To train researchers on computational and statistical methods for the analysis of genomic data.
  • None of these
Q.10
________command is used to exit R programming?
  • quit()
  • qu()
  • exit
  • None of these
Q.11
_________code is used for box and whisker plot in R.
  • scatter.smooth()
  • boxplot()
  • plot()
  • abline()
Q.12
_________code is used for scatter plot in R.
  • scatter.plain()
  • scatter()
  • plot()
  • None of these
Q.13
We wish to calculate the correlation between two columns of a dataset. Which of the below codes will achieve the purpose?
  • cor(A, B)
  • corr(A, B)
  • coreA, B)
  • correlation(A, B)
Q.14
Which of the following graph can be used for simple summarization of data?
  • Scatterplot
  • Barplot
  • Overlaying
  • None of these
Q.15
__________code can be used to plot the correlation matrix in the form of correlogram
  • corplot()
  • correlationplot()
  • corrplot()
  • coreplot()
Q.16
___________shortcut used to clear the console.
  • Ctrl + K
  • Ctrl + L
  • Ctrl + C
  • Ctrl + V
Q.17
_________code is used to run linear regression model in R.
  • linear.model()
  • sum()
  • lm()
  • None of the above
Q.18
________ generate random Normal variates with a given mean and standard deviation.
  • dnorm
  • rnorm
  • pnorm
  • rpois
Q.19
Which of the following finds the maximum value in the vector x
  • rm(x)
  • all(x)
  • max(x)
  • maximum(x)
Q.20
Who created R?
  • Dennis Ritchie
  • John Chambers
  • jarne Stroustrup
  • Ross Ihaka
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