Python Loops and Iterations
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Questions and Answers

The for loop is a condition-controlled loop.

False (B)

Loops are used to execute the instructions several times.

True (A)

The continue statement is used to terminate the loop.

False (B)

The ______ loop is used when we do not know how many times the loop will execute.

<p>While</p> Signup and view all the answers

A condition-controlled (Blank) loop executes the loop body till a condition is true.

<p>While</p> Signup and view all the answers

The ______() function in Python is used to generate a sequence of numbers.

<p>range</p> Signup and view all the answers

The ______ statement is used to exit a loop in between based on a condition.

<p>break</p> Signup and view all the answers

Which one of the following is a valid Python while statement?

<p>while(n&gt;=2): (D)</p> Signup and view all the answers

Which of the following is not a loop?

<p>break (D)</p> Signup and view all the answers

Which of the following is used to terminate the loop?

<p>break (A)</p> Signup and view all the answers

Which of the following is a counter-controlled loop?

<p>for (D)</p> Signup and view all the answers

What is a loop?

<p>A loop is a program structure which is used to contain one or more instructions to be executed repeatedly. Each execution of the loop is called an iteration using loops.</p> Signup and view all the answers

What is a counter-controlled loop?

<p>A counter-controlled loop executes the loop body for a fixed number of times decided by a variable which is called a counter variable. This variable is incremented or decremented after each iteration of the loop and when it reaches a certain value, the loop execution stops. Example: for loop.</p> Signup and view all the answers

What is condition-controlled loop?

<p>A condition-controlled loop executes the loop body till the condition is true and stops when it becomes false. Example: While</p> Signup and view all the answers

Why continue statement is used in a program?

<p>The 'continue' statement is used to continue to the next iteration without executing the remaining statements in the loop. It is used when you want to skip the execution of a particular iteration of the loop.</p> Signup and view all the answers

Match the following list methods with their descriptions:

<p>insert() = inserts an element at the given index in the list (1) append() = adds an item into the list at end of the list (2) remove() = removes an item from the list (3) clear() = removes all items from the list (4)</p> Signup and view all the answers

______ is the study that deals with huge volume of data.

<p>Data Science</p> Signup and view all the answers

______ are data professionals who have the technical ability to analyse big data.

<p>Data Scientist</p> Signup and view all the answers

In ______ stage raw and unstructured data is gathered.

<p>Capture</p> Signup and view all the answers

Banking and Financial institutions use data science for detecting ______ transactions.

<p>fraudulent</p> Signup and view all the answers

Data science is used in manipulating data.

<p>True (A)</p> Signup and view all the answers

Data science helps in decision making.

<p>True (A)</p> Signup and view all the answers

Data science provide high security of data.

<p>False (B)</p> Signup and view all the answers

Data science uses machine learning algorithms to create predictive models.

<p>True (A)</p> Signup and view all the answers

Data Science helps with

<p>All of the above (D)</p> Signup and view all the answers

Data science uses complex __________ to create predictive models.

<p>Machine learning Algorithm (B)</p> Signup and view all the answers

Which of the following is the most important language for Data Sceince?

<p>R (A)</p> Signup and view all the answers

What is data science?

<p>Data Science is the study that deals with huge volume of data. It uses modern tools and techniques to find meaningful information and make business decisions.</p> Signup and view all the answers

Who is data scientist?

<p>Data Scientist are data professionals who have the technical ability to analyse big data.</p> Signup and view all the answers

Write any two disadvantages of data science.

<p>Two disadvantages of data science are: Data Privacy: Data boosts productivity and revenue by supporting smart business decisions. However, misuse of data can harm organizations and individuals, making data security a major concern in data science. Cost: Data science tools are expensive, often require training, and need careful selection to ensure accurate data analysis, making them challenging to use effectively.</p> Signup and view all the answers

Write any two examples of data science.

<p>Two examples of data science are: Healthcare: Machine learning models and other data science components are used by hospitals and other healthcare providers to automate X-Ray analysis and assist doctors in diagnosing illness and planning treatments. Retail: Retailers evaluate client behaviour and purchasing trends in order to individualised product suggestions as well as targeted advertising, marketing and promotions.</p> Signup and view all the answers

Explain various advantages of data science.

<p>Some of the advantages of data science are: Multiple Career Opportunities: Being in demand, it has created large number of career opportunities in its various fields. Some of them are Data Scientist, Data Analyst, Research Analyst, Business Analyst, Analytics Manager, Big Data Engineer, etc. Business Benefits: Data Science helps organizations to know how and when their products sell best and that's why the products are delivered always to the right place and at right time. Time Reduction: It helps in delivering new trends faster by processing large amounts data in very short period of time. Supports Decision Making: Data science also help in decision making process. With the help of machine learning algorithms, better decisions can be made.</p> Signup and view all the answers

In which of these a person is continually chased/followed by another person or a group of various people?

<p>Stalking (A)</p> Signup and view all the answers

Which of the following is considered as the unsolicited commercial email?

<p>Spam (C)</p> Signup and view all the answers

Which of the following is not a malware?

<p>None (D)</p> Signup and view all the answers

Which of the following is used to detect and remove viruses?

<p>Antivirus (A)</p> Signup and view all the answers

What is Cyber Safety?

<p>Cyber Safety refers to the safe and responsible use of information and communication technologies, such as the internet, social media, online games, smartphones, tablets, and other connected devices.</p> Signup and view all the answers

What is malware?

<p>Malware is a type of malicious software designed to gain unauthorized access or to cause damage to a computer without the knowledge of the owner.</p> Signup and view all the answers

What is Cyberbullying?

<p>Cyberbullying refers to the usage of the internet and related sources to cause deliberate harm to people.</p> Signup and view all the answers

List various forms of cyberbullying.

<p>Sending/sharing nasty, hurtful, or abusive messages or email. Humiliating others by posting/sharing embarrassing videos or images. Spreading rumours or lies online Setting up fake online profiles. Repeated harassment and threatening messages.</p> Signup and view all the answers

What is antivirus?

<p>Antivirus is a software that is used to detect, prevent and remove virus from a computer. It helps to perform the following tasks: Scan computers for viruses Detect any malicious program Scan emails</p> Signup and view all the answers

What are the various ways to safely browse the web?

<p>Keep software updated, especially antivirus software. Don't share any personal information online. Don't share passwords. Don't post photos or videos online. Be cautious when making online friends. Don't buy anything online without verifying the authenticity of the site or seller. Be careful when downloading any attachments.</p> Signup and view all the answers

Flashcards

What is a loop?

A program structure that repeats instructions.

Counter-controlled loop

A loop that executes a fixed number of times.

Condition-controlled loop

A loop that executes until a condition is false.

Continue statement

Skips the current loop iteration.

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Break statement

Exits the loop immediately.

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range() function

Generates a sequence of numbers.

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Data Science

Study of large volumes of data.

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Data Scientist

Professionals who analyze big data.

Signup and view all the flashcards

Data Capture Stage

Gathering raw, unstructured data.

Signup and view all the flashcards

Fraudulent transaction detection

Detecting unauthorized or criminal activities.

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Predictive models in Data Science

Using algorithms to predict outcomes.

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Cyber Safety

Safe & responsible use of technology.

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Virus

Software that spreads and harms computers.

Signup and view all the flashcards

Malware

Malicious software.

Signup and view all the flashcards

Cyberstalking

Using tech. to harass/stalk someone.

Signup and view all the flashcards

Cyberbullying

Using tech. to bully someone.

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Antivirus

Detects and removes viruses.

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Spam

Unsolicited commercial email.

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Data privacy and Cost

Data science disadvantages

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Healthcare in Data Science

Automate X-Ray analysis and diagnosis.

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Retail in Data Science

Individualised product suggestions and targeted advertising.

Signup and view all the flashcards

Multiple Career Opportunities -Advantage of Data Science

Created large number of career opportunities.

Signup and view all the flashcards

Business Benefits -Advantage of Data Science

Organizations know how and when their products sell best.

Signup and view all the flashcards

Time Reduction -Advantage of Data Science

Helps in delivering new trends faster.

Signup and view all the flashcards

Supports Decision Making -Advantage of Data Science

Helps in decision making process using machine learning algorithms.

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Capture Stage in Data Science

Raw and unstructured data is collected

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Maintain Stage in Data Science

The collected data is presented in the required format for analysis.

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Process Stage in Data Science

Data scientists use the prepared data and examine its patterns.

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Analyze Stage in Data Science

Data scientists perform various analysis on the data.

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Communicate Stage in Data Science

Data scientists present the analysed data in easily readable for such as charts, graphs, and reports.

Signup and view all the flashcards

Study Notes

Loops and Lists in Python

  • A for loop is not a condition-controlled loop.
  • Loops are used to execute instructions multiple times
  • The continue statement does not terminate a loop.
  • A while loop is a condition-controlled loop.
  • A while loop is used when the number of times the loop will execute is unknown.
  • A condition-controlled while loop executes until a condition becomes true.
  • The range() function generates a sequence of numbers in Python.
  • The break statement exits a loop based on a condition.
  • while(n>=2): is a valid Python while statement.
  • break is not considered a loop
  • break terminates a loop.
  • for is a counter-controlled loop.
  • A loop is a program structure that repeats one or more instructions, and each repetition is called an iteration.
  • A counter-controlled loop runs a fixed number of times, determined by a counter variable incremented or decremented after each iteration. An example is a for loop.
  • A condition-controlled loop runs as long as a condition is true, stopping when it becomes false. An example is a while loop.
  • The continue statement skips the current iteration and proceeds to the next one.
  • insert() inserts an element at a given index in a list.
  • append() adds an item to the end of a list.
  • remove() removes an item from a list.
  • clear() removes all items from a list.

Data Science

  • Data science deals with large volumes of data.
  • Data scientists analyze big data.
  • The capture stage involves gathering raw and unstructured data.
  • Banking and financial institutions use data science to detect fraudulent transactions.
  • Data science is used in manipulating data.
  • Data science helps in decision-making.
  • machine learning algorithms are used to create predictive models.
  • Data science helps with: speech recognition, fraud detection, and image recognition.
  • Data science uses machine learning algorithms to create predictive models.
  • R is the most important language for data science.
  • Data science uses tools and techniques to find meaningful information and make business decisions.
  • Data scientists analyze big data.
  • Potential misuse of data and data security are major concerns in data privacy.
  • Data science tools can be expensive and require specialized training
  • Healthcare and Retail are two examples of data science.
  • Healthcare uses machine learning to automate X-Ray analysis and assist in diagnosing illnesses.
  • Retail uses data to evaluate client behavior, purchasing trends and individualised product suggestions.
  • Data science advantages include:
  • Multiple career opportunities such as Data Scientist, Data Analyst or Big Data Engineer
  • Helping organizations understand when and where their products sell best.
  • Time reduction through faster processing of large amounts of data.
  • Improved decision making with machine learning algorithms.
  • The stages of data science are:
  • Capture: Collecting raw and unstructured data.
  • Maintain: Presenting data in a required format for analysis.
  • Process: Examining data patterns for predictive analytics.
  • Analyze: Performing various analysis on the data.
  • Communicate: Presenting data in charts, graphs, and reports.

Cyber Threats & Safety

  • Stalking is when a person is chased or followed by another person or a group of people.
  • Spam is unsolicited commercial email.
  • None of the provided answers are not a malware.
  • Antivirus software is used to detect and remove viruses.
  • Cyber safety is the safe and responsible use of information and online technologies.
  • A virus is software that spreads through a computer system, causing damage.
  • Malware is malicious software designed to gain unauthorized access or cause damage.
  • Cyberbullying is using the internet to deliberately harm people.
  • Cyberstalking is cybercrime that uses the internet to harass or stalk.
  • Cyberbullying includes: sending abusive messages, humiliating others, spreading rumors, setting up fake profiles, and repeated harassment.
  • Antivirus software detects, prevents, and removes viruses.
  • To browse the web safely: keep software updated, don't share personal information or passwords, don't post inappropriate content, be cautious making online friends, verify the authenticity of sites before buying, and be careful when downloading attachments.

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Python Lists and Loops Practice Questions PDF - Al Falah Education

Description

Explore loops and list comprehensions in Python. Learn about 'for' and 'while' loops, loop control statements like 'break' and 'continue', and the use of the range() function. Understand the difference between counter-controlled and condition-controlled loops.

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