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

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

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

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

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

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

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

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

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9. The __________ function is used to sort the values of column in ascending or descending order. sort()
arrange()
mutate()
manage()

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

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