Y12 EC Data Science Wk2 Lesson

Multiple Choice

What are the success criteria for investigating ways of analyzing data?

• I can investigate how informatics supports the development of a deeper understanding of data.

• I can interpret and present data using graphs, infographics, dashboards, reports, network diagrams and maps.

• I can explain structured and unstructured datasets.

• I can create visual presentations of data.

Multiple Choice

What role does informatics play in the development of a deeper understanding of data?

• It provides tools for data collection

• It eliminates the need for data analysis

• It focuses solely on data storage

• It is unrelated to data management

Multiple Choice

What are the key ways in which informatics supports the development of a deeper understanding of data?

• Data collection

• Data analysis

• Data visualization

• Data interoperability

Multiple Choice

Alicia was admitted to the hospital for some pain in the abdomen. After running some tests, the doctors conclude that Alicia has appendicitis and needs surgery immediately. How does the hospital share information about her condition with the doctors, nurses, and staff?

• The doctors and nurses rely on the staff to inform them verbally of the patient's updaes and latest results

• The doctors, nurses and staff e-mail each other the latest test results, labs, and diagnosis summaries to keep each other informed of the patient's condition

• The doctors, nurses and staff manually enter the information onto the patient's chart to inform all parties and exchange information

• The doctors, nurses, and staff enter the patient's information into the hospital's computer network so that the information is available to the medical team

Multiple Choice

What is one benefit of creating dashboard panels from reports?

• Any newly created dashboard will include that report.

• There are no benefits to creating dashboard panels from reports.

• It makes the dashboard more efficient because it only has to run one search string.

• Any change to the underlying report will affect every dashboard that utilizes that report.

Multiple Choice

Who invented the treemap visualization (hint, they were mentioned in an example figure in the readings)?

• Ben Shneiderman

• Johanna Beyer

• Tamara Munzner

• Martin Wattenberg

Multiple Choice

A collection of ready-made visuals, pre-arranged in dashboards and reports is called what in Power BI

• The canvas

• Scheduled Referesh

• An App

• Dashboard

Poll

Which could you see yourself using more in the future?

• Adjacency Matrices

• Node-Link Diagrams

Multiple Choice

What does Tableau allow users to create?

• Spreadsheets

• Word documents

• Interactive dashboards and visualizations

• Slide presentations

Multiple Choice

What is the main difference between structured and unstructured data?

• Structured data is easier to analyze

• Unstructured data is always numerical

• Structured data is more informative

• Unstructured data is organized in tables

Multiple Choice

What is the difference between structured and unstructured data?

• Structured data has a specific format

• Unstructured data is easier to process

• Structured data includes social media posts

• Unstructured data is always numerical

Multiple Select

Raw Data --> Processing -->???????

• Graph

• Metadata

• Information

• File

Multiple Choice

Data sources being opened and read applies to:

• Indexing Phase

• Parsing Phase

• Input Phase

• License Metering

Multiple Choice

While working on denial "Primary paid more than secondary allowed". Do we required secondary allowed amount or not?

• YES

• NO

• Route the claim to patient contact team

• Call the payer and challenge

Multiple Choice

The mayor of a city is interested in learning what goals are most important for residents of the city. Members of her staff visit one of the many neighborhoods in the city and ask 20 residents to fill out a survey. The mayor is concerned that the survey may be biased and not accurately reflect the overall interests in her town. Which of the following strategies is MOST likely to address concerns about the data being biased or inaccurate

• Finding the same people surveyed previously to ask more detailed questions.

• Visiting the same neighborhood to collect more survey responses

• Visiting multiple new neighborhoods to collect more survey responses

• Having her staff collect the data using an app rather than paper surveys

• Adding more staff to verify that the responses were accurate

Multiple Choice

What are the three forms of alternative data mentioned in the text that are used for collecting feedback?

• Likes

• Emoticons

• Memes

• Comments

Multiple Choice

What are the potential biases to consider when interpreting alternative data from likes, emoticons, and memes?

• Selection bias

• Response bias

• Sampling bias

• Confirmation bias

Multiple Choice

What are the three main factors that can impact the accuracy and reliability of data-driven decisions?

• Errors

• Uncertainty

• Limitations

• All of the above

Multiple Choice

List and explain at least 3 data collection methods.

• 3. Random Selection: Choosing data randomly without any specific method.

• 1. Surveys: Gathering information from a sample of individuals through questionnaires or interviews. 2. Observations: Collecting data by watching and recording behaviors or events. 3. Interviews: Directly asking individuals or groups for information.

• 1. Guessing: Making assumptions about the data without any evidence.

• 2. Social Media: Collecting data from various social media platforms without permission.

Multiple Choice

What are the three key factors that impact data sources as mentioned in the image?

• Sample size

• Data quality

• Data timeliness

• Data analysis

Multiple Choice

What is raw data?

• Data that has been processed

• Data that has not been processed

• Data that is easy to analyze

• Data that contains errors

Multiple Choice

________________ means raw facts or figures

• Information

• data

• newspaper

Multiple Choice

Mô tả Dữ liệu

• Dữ liệu là những sự thật chưa được tổ chức

• Dữ liệu là những sự thật được tổ chức theo cách có ý nghĩa

Multiple Choice

Describe Data

• Without Meaning

• Has a describe or meaning

Multiple Select

What are the benefits of processing data?

• Reduces errors and uncertainty

• Increases data size

• Makes data more complex

• Provides meaningful insights

Open Ended

What is data bias and how can it affect the validity of conclusions drawn from a dataset?

Multiple Choice

What is confirmation bias?

• Tendency to seek confirming information

• Errors in sample selection

• Influence of selection on results

• Disregarding contradictory information

Multiple Choice

What does selection bias refer to?

• Errors in sample selection

• Influence of data selection on results

• Tendency to confirm beliefs

• Systematic errors in data

Multiple Choice

What is the definition of sampling bias?

• Presence of systematic errors in data

• Influence of selection on results

• Tendency to seek confirming information

• Disregarding contradictory information

Multiple Choice

What does data quality bias refer to?

• Systematic errors in data collection

• Random errors in data processing

• Inaccurate data storage methods

• Errors in data analysis

Multiple Choice

What are the success criteria for understanding blockchain technology?

• I can explain how blockchain technology is used to manage and verify data.

• I can explain blockchain features such as online voting, online identities, tracking items of value and recordkeeping.

• I can describe the history of blockchain technology.

• I can identify the main components of blockchain.

Open Ended

Explain how blockchain technology is used to manage and verify data.

Multiple Choice

What is the primary function of blockchain technology in data management?

• To store data in a centralized database

• To provide a secure and tamper-proof record of transactions

• To allow unlimited modifications to data

• To eliminate the need for consensus among participants

Multiple Choice

What are the components of a block in a blockchain as shown in the image?

• Data, Previous hash, Timestamp

• Data, Hash, Timestamp

• Data, Previous hash, Block number

• Data, Timestamp, Block number

Multiple Choice

What are the two main functions of blockchain technology discussed in the image?

• Data verification

• Data sharing

• Data storage

• Data processing

Multiple Choice

In Blockchain Technology, the authenticity of a transaction is verified and confirmed by participants.

• TRUE

• FALSE

Multiple Choice

Which of these is a centralized blockchain metaverse?

• Axie Infinity

• Decentraland

• Earth2

• Roblox

Multiple Choice

How is the data stored on a blockchain?

• In a central database

• In a decentralized network of nodes

• In a cloud-based storage system

• None of the above

Multiple Choice

Imagine a scenario where a group of friends decides to keep track of their shared expenses using a ledger. What does decentralization in this context refer to?

• Having one friend control and manage the ledger alone.

• Having multiple copies of the ledger stored in one friend's house.

• Having multiple copies of the ledger distributed across each friend's house.

• Having a transparent but centralized ledger system managed by a trusted friend.

Multiple Choice

What are smart contracts and how do they utilize blockchain technology?

• Self-executing agreements

• Manual contracts

• Paper-based agreements

• Non-executing contracts

Open Ended

Explain how transparency is achieved in online voting using blockchain technology.

Open Ended

How does blockchain technology ensure the security of voting transactions?

Multiple Choice

What are the key benefits of using blockchain technology for online voting?

• Security

• Transparency

• Anonymity

• Speed

Multiple Choice

Imagine a scenario where a group of banks decides to use a shared digital ledger to record transactions. How does this Blockchain-based system ensure the security and trustworthiness of transaction records?

• By allowing easy changes to the transaction records once they are written.

• By making it very difficult to change or tamper with the transaction records once they are added.

• By storing all transaction records in a single location for easy access.

• By requiring a centralized authority to validate all transactions.

Multiple Choice

How does blockchain technology enhance the security of global information?

• By creating a physical barrier around data centers

• By encrypting data with unbreakable codes

• By distributing data across a network of computers, making it nearly impossible to hack

• By storing all global information in a single location for easier monitoring

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident