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 ______________. Whiskers
Tails
Notches
Outliers

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

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3. Response variable is represented on _______________ both x-axis and y-axis
no axis
y-axis
x-axis

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

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5. ___________ is called the positional average of any data. mean
median
quartiles
mode

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6. The __________ function is used to select data by its column names. retrieve()
fetch()
all of them
select()

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

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8. _____________ is an open source R package that provides an elegant and powerful Web framework for building Web applications. Dash
Ggplot2
Leaflet
Shiny

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

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

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