Science of managing and analyzing large amounts of data
Science of creating data
None of the above
Which of the following is a programming language used in Data Science?
Python
Java
C++
All of the above
What is Machine Learning?
Learning by machines
A type of Artificial Intelligence that provides computers the ability to learn without being explicitly programmed
Learning about machines
None of the above
Which type of machine learning algorithm is used for classification tasks where the output is a category or label?
Supervised Learning
Regression
Clustering
Unsupervised Learning
What is the primary purpose of data visualization in data science?
To make data look more appealing
To replace traditional data analysis techniques
To communicate information effectively through visual representations
To hide data complexities
What is the process of finding hidden patterns and information in large datasets called?
Data Exploration
Data Mining
Data Cleaning
Data Integration
In data science, what does the acronym "ETL" stand for?
Extract, Train, Load
Explore, Test, Learn
Extract, Transform, Load
Execute, Track, Log
Which command is used to load data from an external CSV file into a pandas DataFrame?
Read_csv()
Load_csv()
Import_csv()
Open_csv()
In pandas, the describe() function provides summary statistics for both numeric and non-numeric columns in a DataFrame.
True
False
The head() function in pandas displays the last few rows of a DataFrame.
True
False
Which is not a tool for Statistical Data Analysis?
Logistic Regression
Linear & Non-linear Regression
Histogram
ANOVA
R is an__________ programming language?
GPL
Open source
Closed source
Definite source
Which of the following is not a major data analysis approaches?
Data Mining
Predictive Intelligence
Business Intelligence
Text Analytics
Data Analysis is defined by the statistician
William S.
Hans Peter Luhn
Gregory Piatetsky-Shapiro
John Tukey
Text Analytics, also referred to as Text Mining?
True
False
Which of the following plots are often used for checking randomness in time series?
Autocausation
Autorank
F1 score
Autocorrelation
Which of the following is not a recommended type of graph?
Pie chart
Box plot
Histogram
Line chart
A Poisson distribution is a probability distribution used in statistics to show how many times an event is likely to happen over a given period of time?
True
False
Density maps reveal ___
Data storage
Patterns
Which of the following is tool for chi-square distributions?
Chisq()
Pnorm
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