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Title: DATA LITERACY CHAPTER 2 NOTES
Description: Class 9th Artificial intelligence chapter 2 data literacy notes For students .
Description: Class 9th Artificial intelligence chapter 2 data literacy notes For students .
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Unit 2 - Data Literacy
Part-2(Acquiring Data, Processing, and Interpreting Data)
Q
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E
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, height, weight, temperature, voltage
● Discrete data is numeric data that contains only whole numbers and cannot be fractional E
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the number of students in
the class – it can only be a whole number, not in decimals
Q
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How to acquire data?
Ans: Data Acquisition, also known as acquiring data, refers to the procedure of gathering data
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The process typically comprises three key steps
The process of searching and downloading data from the internet is called data discovery
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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
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● Secondary Data Sources—Secondary data collection obtains information from external sources, rather than
generating it personally
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On the basis of which attributes ,data will be called good or bad?
Ans:
Q5
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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
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Structure- Defines how data is stored
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Cleanliness- Clean data is free from duplicates, missing values, outliers, and other anomalies that may affect its
reliability and usefulness for analysis
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3
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Accurate data
closely reflects actual values without errors, enhancing the quality and trustworthiness of the dataset
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They describe each piece of
information in a dataset
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In AI models, we need two types of features: independent and dependent
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Dependent features, on the other hand, are the outputs or results of the model—they're what we're trying to predict
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Ans: Data Processing and Data Interpretation:
Data Processing ▪ Data processing helps computers understand raw data
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Data Interpretation ▪ It is the process of making sense out of data that has been processed
Title: DATA LITERACY CHAPTER 2 NOTES
Description: Class 9th Artificial intelligence chapter 2 data literacy notes For students .
Description: Class 9th Artificial intelligence chapter 2 data literacy notes For students .