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Data Science Essentials Quiz

Authored by Tapas Mishra

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University

10 Questions

Used 1+ times

Data Science Essentials Quiz
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary goal of data science?

To visualize data in charts

To store data in databases

To extract knowledge from data

To create complex algorithms

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a component of data science?

Web Development

Statistics

Data Engineering

Domain Expertise

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is data wrangling?

The process of visualizing data

The process of cleaning and organizing data

The process of analyzing data

The process of storing data

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which Python library is primarily used for data manipulation?

NetworkX

SciPy

Pandas

Matplotlib

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the term 'missing data' refer to?

Data that is not relevant

Data that is corrupted

Data that is not available

Data that is duplicated

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a method for detecting missing values in a pandas DataFrame?

replace()

fillna()

dropna()

isnull()

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of feature selection?

To visualize data

To improve model accuracy and reduce time complexity

To clean the data

To reduce the size of the dataset

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