Page 510 - AI Ver 3.0 class 10_Flipbook
P. 510

Time Study      Marks                                       Marks
                                                  70
                        5            20
                                                  60
                        1             7                                      y = 6.9797x  - 7.4985
                                                  50
                       3.2           12
                        8            55           40
                        7            60         Marks Scored  30
                       3.3           18           20
                       6.5           30           10

                        4            18
                                                   0
                        5            22              0      1      2      3      4      5      6      7      8      9
                                                 -10
                        7            32                                      No. of Hours Studied

                 The graph is showing a positive trend which means that if the student studies more number of hours, the
                 student scores more.
                 So, both are positively related.
                 Prediction of marks using the linear regression equation

                 if no. of hours is 12, then marks will be
                 y =6 .9797(12) - 7.4985 = 76.258 (marks)
              4.  You have been asked to develop a Smart Student Grading System for your school. For developing this
                 system:
                 a.  Set goals

                 b.  Identify the stakeholders
                 c.  Identify the existing measures
                 d.  Identify the ethical concerns
                 e.  Identify the data needs

                 f.  Identify the sources of data
                 g.  Visualise mock data

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