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    The Orient Electric Aeon VC Smart BLDC Pro Ceiling
                                 Fan has a special motor that uses less energy and works
                                 quietly. You can control it using an app or by talking to
                                voice assistants like Alexa or Google. It has six speed

                       ai       options, a sleep mode and a timer, making it easy to use
                                and giving strong airflow.
                          lens

                     People
                     People  create  a huge amount  of data

                     every single day and most of the time, they
                     don’t even realise it. When a student fills in

                     a school form, writes a review for a book
                     on an app or answers a quiz online, that
                     student is creating data.

                     Some of the most common ways people produce data are listed below:

                      Typing a question into a search engine like Google.

                      Giving a star rating to a film or a game on an app.

                      Writing a comment under a video on YouTube.

                      Filling in a school attendance sheet.

                      Tapping the like button on a post or a photo.

                     When data from  millions of people  is studied  together,  it helps companies,
                     researchers and AI systems understand what people enjoy, what they find difficult

                     and what kind of help they need.
                                                                     The Internet

                                                                     The Internet is one of the biggest sources of
                                                                     data in the world. Websites, apps and online
                                                                     services  are  always  creating  and  sharing

                                                                     new information. For example, think about
                                                                     a weather website. It gathers temperature

                                                                     readings from hundreds of cities, measures
                                                                     rainfall,  tracks  wind speed  and receives
                                                                     pictures from weather satellites, all at the

                                                                     same time. This information is combined to
                                                                     give you a weather forecast for tomorrow.

                                                                                          Good Data and Bad Data       23

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