Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 51 - CT_AI_Class-7
P. 51

    Let’s explore how you can collect data and where it comes from.

                      Observation: One of the easiest ways to collect data is by observing things around you. You
                        can  gather  information  simply  by  watching  and counting  certain  events  or activities.  For
                        example: Counting how many students take the school bus to get to school.

                      Surveys and questionnaires: Another  simple  method  is  to  ask  questions  and  record  the
                        answers. This  is  called  a survey or questionnaire.  You  can ask  a group  of people  about
                        something and collect their responses. For example: You can conduct a survey among your
                        classmates to find out their favourite sports.

                      Measurements: Data can also be collected using tools to measure and record values. These
                        tools could be something simple like a ruler or thermometer or more advanced devices. For
                        example: Measuring how much a plant grows each week.

                      Automatic device: Many devices automatically collect data, making it easy for you to track
                        information without doing much. For example, your mobile phone automatically tracks your
                        step count and screen time. Websites track the number of visits and clicks and smartwatches
                        monitor your heart rate.

                     DATA SOURCES

                     Now that you know how data can be collected, let’s understand where this data comes from.
                     Data sources are the places or platforms where data is generated. There are many types of data
                     sources, both physical and digital. Let’s take a look at some of these sources:

                      Sensors: These are devices that collect real-time data. For example,
                        fitness trackers collect data on your steps or temperature sensors
                        track the weather.

                                                    Social media: Platforms like Instagram, Facebook or X generate
                                                      data based on posts, likes, comments and shares.

                                                                                     Data Visualisation and Analysis  49

| 46 47 48 49 50 51 52 53 54 55 56 |