STATISTICS FOR BUSINESS
                                   (Presenting and organizing data)
                                                           Weekly                         How good is your performance?
           Presenting data as a bunch
         of numbers is difficult to interpret           hotel operating 
            - even if you have 3 PhD’s                      costs
          35 378  170 569 104 985 134 859 120 958 107 865 127 895 106 825 130 564  108 654
         109 785  184 957 96 598  121 985  63 258 164 295  97 568 165 298 113 985  124 965
         108 695  91 864  120 598  47 865 162 985  83 964 103 985  61 298 104 987  184 562
          89 597  160 259 55 492  152 698  92 875  56 879 151 895  88 479 165 698  89 486
          85 479  64 578  103 985  81 980 137 859 126 987 102 987 116 985  45 189  131 958
          73 598  161 895 132 689 120 654  67 895  87 653  58 975 103 958 124 598  168 592
          95 896  52 754  114 985  62 598 145 985  99 654  76 589 113 590  80 459  107 865
         109 856  101 894 80 157   78 598  86 785  97 562 136 984  89 856  96 215  163 985
          83 695  75 894  98 759  133 958  74 895  37 856  90 689  64 189 107 865  123 958
         105 987  93 832  58 975  102 986 102 987 144 985 101 498 101 298 103 958  71 589
          59 326  121 459 82 198   60 128  86 597  91 786  56 897 112 854  54 128  152 654
          99 999  78 562  110 489  86 957  99 486 132 569 134 987  76 589 135 698  118 654
          90 598  156 982 87 694  117 895  85 632 104 598  77 654 105 987  78 456  149 562
          68 976  50 128  106 598  63 598 123 564  47 895 100 295  60 128 141 298  84 598
         100 296  77 498  77 856  134 890  79 432 100 659  95 489 122 958 111 897  129 564
          71 458  88 796  110 259  72 598 140 598 125 489  69 584  89 651  70 598  93 876
         112 987  123 895 65 847  128 695  66 897  82 459 133 984  98 459 153 298  87 265
          72 312  81 456  124 856 101 487  73 569 138 695  74 583 136 958 115 897  142 985
         119 654  96 592  66 598   81 490 139 584  82 456 150 298 106 859  68 945  122 654
          70 489  94 587  85 975  138 597  97 498 143 985  92 489 146 289  84 592  69 874
                                          How good is your performance?                  You should be
        Making visual presentations it is easier to see  patterns,                      shot if you present
                                                                                        data in this manner!
        trends, and importance of segments of the information
        Derek L WALLER                                                                             2
                                 STATISTICS FOR BUSINESS
                               (Presenting and organizing data)
                                                                               How good is your performance?
                        Weekly hotel operating costs: Absolute frequency histogram
               10
                                                  9
                9
                8
                                                        7
                7
                                             6               6
                6
      Frequency                         5                         5
        times   5
      of occurrence
                                   4
                4
                3
                         2    2                                        2    2
                2
                                                                                 1     1
                1
                0
                   0
                  80,000 100,000 120,000 140,000 160,000 180,000 200,000 220,000 240,000 260,000 280,000 300,000 320,000 340,000
                                            Upper boundary limit of class, $
       Derek L WALLER                                                                  3
                                                      STATISTICS FOR BUSINESS
                                                   (Presenting and organizing data)
            If representative useful for
            forecasting and probability                                                                                           How good is your performance?
                                   Weekly hotel operating costs: Relative frequency histogram
                      20%
                      18%                                                      17.31%
                      16%
                      14%                                                               13.46%
                      12%                                              11.54%                   11.54%
          Relative                                             9.62%                                     9.62%
         frequency    10%
             of
         occurrence                                   7.69%
                       8%
                       6%
                       4%            3.85%    3.85%                                                               3.85%   3.85%
                       2%                                                                                                          1.92%   1.92%
                       0%
                             0.00%
                            80,000 100,000 120,000 140,000 160,000 180,000 200,000 220,000 240,000 260,000 280,000 300,000 320,000 340,000
                                                                      Upper boundary limit of class, $
            Derek L WALLER                                                                                                                      4
                                       STATISTICS FOR BUSINESS
                                     (Presenting and organizing data)
                                                                                              How good is your performance?
                Weekly hotel operating costs: Polygon of absolute numbers – uses mid point of class limits
                    10
                    9
                    8
                    7
                    6
           Absolute 5
           frequency of
           occurrence
                    4
                    3
                    2
                    1
                    0
                    50,000     100,000    150,000    200,000    250,000    300,000    350,000     400,000
                                                          Costs, $US
         Derek L WALLER                                                                                 5
                                                           STATISTICS FOR BUSINESS
                                                        (Presenting and organizing data)
                                                                                                                                                How good is your performance?
                                       Weekly hotel operating costs: Polygon of relative occurrence
                       20%
                       18%
                       16%
                       14%
                       12%
          Relative     10%
         frequency of
         occurrence
                        8%
                        6%
                        4%
                        2%
                        0%
                          50,000            100,000           150,000            200,000            250,000           300,000            350,000            400,000
                                                                                          Costs, $US
             Derek L WALLER                                                                                                                                    6