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. OOP stands for? Orange Oriented Pixels
Object Oriented Programming
Object of Program
Option Object Programming

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

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

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

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5. Histograms are good to display the _________ of the data. Mean
Quartile
Mode
Median

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

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7. The layers in ggplot2 are called ___________. adds on
geoms
levels
sheets

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8. Response variable is represented on ___________ none of them
both x-axis and y-axis
y-axis
x-axis

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9. ___________ returns a character vector of the same length and with the same attributes as x. grep()
gsub()
regexp()
paste()

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10. Which one is not a step of Data Preparation process. Feature Selection
None of the Them
Missing Values
Remove Duplicate Entries

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