Page 41 - Math SL HB Sem 3
P. 41

) Read data from tables and apply formula


                 \.     mp  le:

                  ln a survey of 150 people,   '130  of those were native Cantonese  speakers.
                  It was found that 100  people  were studying at local public  school, including  15 non-native
                  Cantonese-speaking  sludents.
                  a) C represents  native Cantonese  speakers.
                    Complete  the table using the given  information.

                                                  c                                      Total
                        Local school
                     lnternational  school
                            Total

                  b) lf one student is selected randomly from those who.ioined  the survey, flnd the probability
                     that the student  is
                     i) studying  at a local school

                     ii) a non-native  Cantonese  speaking  student,  given  that he/she is studying  at an
                       international  school.


                  \. sotution:
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