Unit 1

Question 1

Algorithms

Answer 1

A set of step-by-step instructions to solve a problem or complete a task.

Question 2

Model

Answer 2

A representation of the relationships and patterns found in data to make predictions or analyze complex systems, retaining essential elements needed for analysis.

Question 3

Outliers

Answer 3

When a data point or points occur significantly outside of most of the other data in a data set.

Question 4

Quantitative Analysis

Answer 4

A systematic approach using mathematical and statistical analysis is used to interpret numerical data.

Question 5

Structured Data

Answer 5

Data is organized and formatted into a predictable schema, usually related tables with rows and columns.

Question 6

Unstructured Data

Answer 6

This data type often includes text, images, videos, and other content that does not fit neatly into rows and columns.

Question 7

CSV/TSV

Answer 7

Commonly used format for storing tabular data as plain text, where either the comma or the tab separates each value.

Question 8

Data File Types

Answer 8

A computer file configuration is designed to store data in a specific way.

Question 9

Data Format

Answer 9

How data is encoded so it can be stored within a data file type.

Question 10

Data Visualization

Answer 10

A way of representing data in a readily understandable way makes it easier to see trends in the data.

Question 11

Delimited Text File

Answer 11

A plain text file where a specific character separates the data values.

Question 12

Extensible Markup Language (XML)

Answer 12

A language designed to structure, store, and enable data exchange between various technologies.

Question 13

Hadoop

Answer 13

An open-source framework designed to store and process large datasets across clusters of computers.

Question 14

JavaScript Object Notation (JSON)

Answer 14

A data format compatible with various programming languages for two applications to exchange structured data.

Question 15

Jupyter Notebooks

Answer 15

A computational environment that allows users to create and share documents containing code, equations, visualizations, and explanatory text.

Question 16

Nearest Neighbor

Answer 16

A machine learning algorithm that predicts a target variable based on its similarity to other values in the dataset.

Question 17

Neural Networks

Answer 17

A computational model used in deep learning that mimics the structure and functioning of the human brain’s neural pathways. It takes an input, processes it using previous learning, and produces an output.

Question 18

Pandas

Answer 18

An open-source Python library that provides tools for working with structured data is often used for data manipulation and analysis.

Question 19

R

Answer 19

An open-source programming language used for statistical computing, data analysis, and data visualization.

Question 20

Python Notebooks

Answer 20

Computational environment allows users to create and share documents containing code, equations, visualizations, and explanatory text.

Question 21

Recommendation Engine

Answer 21

A computer program that analyzes user input, such as behaviors or preferences, and makes personalized recommendations based on that analysis.

Question 22

Regression

Answer 22

A statistical model that shows a relationship between one or more predictor variables with a response variable.

Question 23

Tabular Data

Answer 23

Data that is organized into rows and columns.

Question 24

XLSX

Answer 24

The Microsoft Excel spreadsheet file format.

Question 25

Open Source

Answer 25

Refers to any software whose source code is made available free for any third party to review and modify.