->  codebook


radon ----------------------------------------- Mean Radon Concentration (pCi/L
                  type:  numeric (float)

                 range:  [.74,4.31]                   units:  .01
         unique values:  25                   coded missing:  4 / 30

                  mean:   2.17615
              std. dev:   1.01908

           percentiles:        10%       25%       50%       75%       90%
                             1.31       1.4     1.855      2.61      4.05


cancer ---------------------------------------- Wt.Female Lung Cancer (x10^-5/y
                  type:  numeric (float)

                 range:  [3.5,10.5]                   units:  .1
         unique values:  21                   coded missing:  0 / 30

                  mean:   5.63333
              std. dev:   1.38672

           percentiles:        10%       25%       50%       75%       90%
                             4.15       4.7      5.55       6.1       6.8


number ---------------------------------------- Number of Household Radon Tests
                  type:  numeric (int)

                 range:  [4,4493]                     units:  1
         unique values:  24                   coded missing:  4 / 30

                  mean:   429.962
              std. dev:   953.763

           percentiles:        10%       25%       50%       75%       90%
                                6        15      41.5       372      1384


state ------------------------------------------------------------------- State
                  type:  numeric (byte)
                 label:  state

                 range:  [1,3]                        units:  1
         unique values:  3                    coded missing:  0 / 30

            tabulation:  Freq.   Numeric  Label
                            13         1  NY
                             4         2  NJ
                            13         3  PA


locale ----------------------------------------- Reading Prong, other locations
                  type:  numeric (byte)
                 label:  locale

                 range:  [1,3]                        units:  1
         unique values:  3                    coded missing:  0 / 30

            tabulation:  Freq.   Numeric  Label
                             6         1  R.Prong
                             8         2  Fringe
                            16         3  Control


reading --------------------------------------------------- Reading Prong dummy
                  type:  numeric (byte)

                 range:  [0,1]                        units:  1
         unique values:  2                    coded missing:  0 / 30

            tabulation:  Freq.  Value
                            24  0
                             6  1


fringe ------------------------------------------------------ Fringe area dummy
                  type:  numeric (byte)

                 range:  [0,1]                        units:  1
         unique values:  2                    coded missing:  0 / 30

            tabulation:  Freq.  Value
                            22  0
                             8  1


Ereading ------------------------------------------------ effects-coded Reading
                  type:  numeric (byte)

                 range:  [-1,1]                       units:  1
         unique values:  3                    coded missing:  0 / 30

            tabulation:  Freq.  Value
                            16  -1
                             8  0
                             6  1


Efringe -------------------------------------------------- effects-coded fringe
                  type:  numeric (byte)

                 range:  [-1,1]                       units:  1
         unique values:  3                    coded missing:  0 / 30

            tabulation:  Freq.  Value
                            16  -1
                             6  0
                             8  1


control ---------------------------------------------------- control area dummy
                  type:  numeric (byte)

                 range:  [0,1]                        units:  1
         unique values:  2                    coded missing:  0 / 30

            tabulation:  Freq.  Value
                            14  0
                            16  1


county ----------------------------------------------------------------- County
                  type:  string (str11)

         unique values:  30                   coded missing:  0 / 30

              examples:  "Delaware"
                         "Lehigh"
                         "Otsego"
                         "Susquehanna"

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