Introduction to data science

1. Data Products shown in the below figure is built using which programming language?

S
Python
R
Java

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class="read-more button" href="https://exam.pscnotes.com/mcq/data-products-shown-in-the-below-figure-is-built-using-which-programming-language/#more-59677">Detailed SolutionData Products shown in the below figure is built using which programming language?

2. Point out the wrong statement.

Command is the CLI command which does a specific task
There is one and only flag for every command in CLI
Flags are the options given to command for activating particular behaviour

Detailed SolutionPoint out the wrong statement.

3. Which of the following focuses on the discovery of (previously) unknown properties on the data?

Data mining
Big Data
Data wrangling
Machine Learning

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href="https://exam.pscnotes.com/mcq/which-of-the-following-focuses-on-the-discovery-of-previously-unknown-properties-on-the-data/#more-59599">Detailed SolutionWhich of the following focuses on the discovery of (previously) unknown properties on the data?

4. Which of the following is the most important language for Data Science?

Java
Ruby
R
None of the mentioned

Detailed

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SolutionWhich of the following is the most important language for Data Science?

5. Which step in the Data Science process involves assessing the quality of collected data?

Data Collection
Data Cleaning
Data Validation
Data Visualization

Detailed SolutionWhich step in

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the Data Science process involves assessing the quality of collected data?

6. Standard normal RVs are always labelled as Z.

TRUE
nan
nan
nan

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href="https://exam.pscnotes.com/mcq/standard-normal-rvs-are-always-labelled-as-z/#more-59428">Detailed SolutionStandard normal RVs are always labelled as Z.

7. What is the primary purpose of data visualization in Data Science?

To make data more complicated
To simplify complex data
To increase data complexity
To store data

Detailed SolutionWhat

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132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
is the primary purpose of data visualization in Data Science?

8. Which of the following command help us to give message description?

git command -m
git command -d
git command -message
none of the mentioned

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give message description?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-command-help-us-to-give-message-description/#more-58888">Detailed SolutionWhich of the following command help us to give message description?

9. Point out the wrong statement.

You need GitHub to use Git
GitHub allows you to share repositories with others
GitHub allows you to access others repositories

Detailed SolutionPoint out the wrong statement.

10. Which of the following is a common method for dealing with missing data in a dataset?

Dropping missing values
Imputing missing values
Creating new features
Normalizing the data

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data in a dataset?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-is-a-common-method-for-dealing-with-missing-data-in-a-dataset/#more-58756">Detailed SolutionWhich of the following is a common method for dealing with missing data in a dataset?

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