Krishna
0

Step 1:  Find the original range of the given data

                  GIVEN:  1, 6, 3, 9, 6, 1, 1

                      Arrange the numbers from least to greatest.

                                 1, 1, 1, 3, 6, 6, 9  

  

      The range is the difference between the greatest number and the least number.

                              Range = 9 - 1 = 8


Step 2: Replace the number and find the range  

                             1, 6, 3, 9, 6, 1, 1

                  GIVEN: 3 replace the number 9's in the set

                                      1, 6, 3, 3, 6, 1, 1

                      Arrange the numbers from least to greatest.

                                 1, 1, 1, 3, 3, 6, 6

  

                            Range = greatest number - least number.

                                          = 6 - 1 =

                                Range = 5          

        

                  Hence,  range if decreased