St. Data Science and Machine Learning

What is Data Science?

Science of Data

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

Which of the following is tool for chi-square distributions?

Chisq()

Pnorm

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