Page 123 - Math Course 1 (Book 1)
P. 123

Algebra: Scatter Plots




               SCIENCE Scientists have determined that there           Temperature (˚F)   Chirps/min
               may be a relationship between temperature and                 71              138
               the number of chirps produced by crickets. The
               table gives the temperature and the number of                 68               97
               chirps per minute for several cricket samples.                75              152

               5. Make a scatter plot of the data.                           80              158
                                                                             60               81
                                                                             75              155
                                                                             84              165


















               6. Does there appear to be a relationship between           y
                   temperature and chirps? Explain.
                                                                    170
                                                                    160
                                                                    160

                                                                    140
                                                                    130
                                                                    Chirps/min  120

                                                                    110
               7. Suppose the outside temperature is 65o. About     100
                   how many chirps per minute would you expect
                   from a cricket?                                    90
                                                                      80
                                                                      70


                                                                            50  55  60  65  70  75  80  85  X
                                                                                  Temperature ( ˚F )





               8. Suppose the outside temperature is 55o. About how
                    many chirps per minute would you expect from a
                    cricket?














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