WorksheetsData Science Essentials Quiz
Total questions: 10
Worksheet time: 5mins
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
Which of the following is NOT a component of data science?
Web Development
Statistics
Data Engineering
Domain Expertise
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
Which Python library is primarily used for data manipulation?
NetworkX
SciPy
Pandas
Matplotlib
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
Which of the following is a method for detecting missing values in a pandas DataFrame?
replace()
fillna()
dropna()
isnull()
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
Which of the following tools is used for data visualization?
Excel
All of the above
Tableau
R
What is the role of a Data Scientist?
To develop software applications
To analyze data and provide insights
To create marketing strategies
To manage databases
Which library is commonly used for machine learning in Python?
NumPy
Matplotlib
Pandas
Scikit-learn
