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    Without databases, none of these services would work reliably. Information would
                      get lost, mixed up or be impossible to find. Databases bring order to the enormous

                      amounts of data that modern life depends on.
                                                                                                   21 st
                                                                                                  Century   #Technology Literacy
                                                                ai in action                       Skills

                      In the game AI Data Sorting Game learn how data is sorted and categorised. Make predictions
                      on how to sort items and how AI makes decisions based on patterns.
                      Visit the given link or scan the QR code to access the application:

                      https://studio.code.org/courses/k5-ai-data-2024/units/1/lessons/1/levels/1

                      YOUR CHOICE - GOOD DATA AND BAD DATA

                      Now that you know where data comes from and how it is stored, it’s time to ask a

                      very important question: Is all data equally useful? The answer is no. Data can be
                      good or bad and the difference matters a lot, especially when AI systems use that
                      data to make decisions.

                      What Makes Data Good?
                      Good data is data that we can trust. It helps us make decisions or learn more about

                      something. For data to be good, it must have a few important qualities:

                       Accurate: The data must show the truth. It should be correct and not
                         contain any errors.

                                 Complete: No important information should be missing. All details are

                                    needed for a full picture.

                       Consistent: The same kind of information must always be recorded in
                         the same way. This makes it easier to understand and compare.

                                 Relevant: The data must be connected to the question or problem being
                                    studied. If it doesn’t help answer the question, it’s not useful.

                      Imagine a school nurse who wants to study the sleeping habits of students in Classes

                      4 and 5. She asks 200 students to honestly record how many hours they sleep each
                      night for one week. If all the students fill in the form carefully and truthfully, the nurse
                      will have good data.

                      What Makes Data Bad?

                      Bad data is inaccurate, incomplete or unfair. It can enter a system in many ways.

                      Sometimes a sensor gives wrong readings, people make mistakes when filling in

                       32        Artificial Intelligence (CT & AI)-V

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