Search for notes by fellow students, in your own course and all over the country.

Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.

My Basket

You have nothing in your shopping cart yet.

Title: DATA LITERACY CHAPTER 2 NOTES
Description: Class 9th Artificial intelligence chapter 2 data literacy notes For students .

Document Preview

Extracts from the notes are below, to see the PDF you'll receive please use the links above


Unit 2 - Data Literacy
Part-2(Acquiring Data, Processing, and Interpreting Data)
Q
...
E
...
, height, weight, temperature, voltage
● Discrete data is numeric data that contains only whole numbers and cannot be fractional E
...
the number of students in
the class – it can only be a whole number, not in decimals
Q
...
How to acquire data?
Ans: Data Acquisition, also known as acquiring data, refers to the procedure of gathering data
...
The process typically comprises three key steps

The process of searching and downloading data from the internet is called data discovery
...
Where from we can collect the Data?
Ans:Sources of Data Various Sources for Acquiring Data:
● Primary Data Sources — Some of the sources for primary data include surveys, interviews, experiments, etc
...

● Secondary Data Sources—Secondary data collection obtains information from external sources, rather than
generating it personally
...
On the basis of which attributes ,data will be called good or bad?
Ans:

Q5
...
What are the Ethical concerns in data acquisition
Ans:While gathering data and choosing datasets, certain ethical issues can be addressed before they occur:

Q7
...
Structure- Defines how data is stored
...
Cleanliness- Clean data is free from duplicates, missing values, outliers, and other anomalies that may affect its
reliability and usefulness for analysis
...

3
...
Accurate data
closely reflects actual values without errors, enhancing the quality and trustworthiness of the dataset
...
They describe each piece of
information in a dataset
...

In AI models, we need two types of features: independent and dependent
...

Dependent features, on the other hand, are the outputs or results of the model—they're what we're trying to predict
...

Ans: Data Processing and Data Interpretation:
Data Processing ▪ Data processing helps computers understand raw data
...

Data Interpretation ▪ It is the process of making sense out of data that has been processed
...

Q- Briefly discuss some keywords related to Data
...

Data Processing- After raw data is collected, data is processed to derive meaningful information from it
...

Data Interpretation – It is to be able to explain what these findings/conclusions mean in a given context
...

Q-How to interpret data?
Ans:

Qualitative Data Interpretation
● Qualitative data tells us about the emotions and feelings of people
● Qualitative data interpretation is focused on insights and motivations of people
Q- How we can collect data?
Ans: Data Collection Methods –
1
...
It is similar to going to a library
...


Focus groups: In this method, data is collected from a group discussion on relevant topic
...
One-to-One Interviews: In this method, data is collected using a one-to-one interview
...







Quantitative Data Interpretation
Interviews: Quantitative interviews play a key role in collecting information
...
Polls are usually limited to one
question
...


Q-List the ways in which data can be presented?
Ans: Types of Data Interpretation There are three ways in which data can be presented:

Textual DI ▪ The data is mentioned in the text form, usually in a paragraph
...

Tabular DI ▪ Data is represented systematically in the form of rows and columns
...

▪ Column Headings (Year; Salary; Transport; Bonus; Interest ) contains the description of information
contained in columns
...
What are the different methods to interorate data graphically?
Ans: Graphical Data Interpretations:

Graphical data interpretation

Bar Chart

Pie Chart

Line Chart

1
...

2
...
Line Graphs
▪ A line graph is created by connecting various data points
...



Title: DATA LITERACY CHAPTER 2 NOTES
Description: Class 9th Artificial intelligence chapter 2 data literacy notes For students .