Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. How to visualize data in Pie Chart? piechart
package
pipe
pie

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2. Which function is used to add labels to the graph in the ggplot() function. label()
labs()
lab()
All of them

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3. _____________ is not a type of operator in R. Mathematical
Logical
Relational
Assignment

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4. How to installed packages in R? install(packagename)
require(packagename)
Library(packagename)
Install.packages(packagenames)

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5. Points more than 1.5 times the inter quartile range above the third quartile is the point of ___________. 25th percentile
75th percentile
50th percentile
100th percentile

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6. ____________ is the raw collection of records, contents and images. Data
Data frame
Tables
Matrix

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7. __________ is used to plot scatter plot of two variables in accordance with the third variable. Coplot
Violin graph
None of these
Heatmap

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8. What is the function used to read CSV files into R? readfile()
read_csv()
csv()
read()

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9. The __________ function is used to group data frame. group_by()
List()
matrix()
summerize()

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10. When the explanatory variable is categorical, then _____________ graph is used. pie chart
box plot
scatter plot
None of these

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