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. The vertical dashed lines in the boxplot are known as ______________. Outliers
Notches
Tails
Whiskers

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

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3. ___________ is a concepts of one to many. Abstraction
Encapsulation
Polymorphism
Inheritance

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4. The estimate of any population is called ___________ Guess
Statistics
Subset
Sampling

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5. The lapply() function takes ___________, ____________ and __________ as input. Array, List, Matrix
Data Frame, Array
None of them
List, Vector and Data Frame

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6. The lapply() function return ___________ as output. List
Vector
Array
Data frame

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7. Heavy data ranging from petabytes or exabytes is called ___________. Big Data
Heavy Data
Huge Data
Large Data

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8. Which function is used to add regression line to the scatter plot. smooth()
abline()
abs_line()
None of them

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

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

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