|   ..
                                              |  .====..
    Valori Percentuali chi2(p)                | .======| ..
    per la distribuzione chi-quadrato         |.=======|   ..
    con v gradi di liberta'                   |.=======|_____......
    (area tratteggiata = p)                           chi2(p)
  ______________________________________________________________________________
  v  .995   .99   .975  .95   .90   .75    .50   .25  .10  .05  .025  .01   .005
  ------------------------------------------------------------------------------
  1   7.88  6.63  5.02  3.84  2.71 1.32    .455  .102 .016 .003 .0010 .0002 .000
  2  10.6   9.21  7.38  5.99  4.61 2.77   1.39   .575 .211 .103 .0506 .0201 .010
  3  12.8  11.3   9.35  7.81  6.25 4.11   2.37  1.21  .584 .352 .216  .115  .072   
  4  14.9  13.3  11.1   9.49  7.78 5.39   3.36  1.92 1.06  .711 .484  .297  .207 
  5  16.7  15.1  12.8  11.1   9.24 6.63   4.35  2.67 1.61 1.15  .831  .554  .412
 
  6  18.5  16.8  14.4  12.6  10.6  7.84   5.35  3.45 2.20 1.64 1.24   .872  .676
  7  20.3  18.5  16.0  14.1  12.0  9.04   6.35  4.25 2.83 2.17 1.69  1.24   .989
  8  22.0  20.1  17.5  15.5  13.4  10.2   7.34  5.07 3.49 2.73 2.18  1.65  1.34
  9  23.6  21.7  19.0  16.9  14.7  11.4   8.34  5.90 4.17 3.33 2.70  2.09  1.73
 10  25.2  23.2  20.5  18.3  16.0  12.5   9.34  6.74 4.87 3.94 3.25  2.56  2.16

 11  26.8  24.7  21.9  19.7  17.3  13.7  10.3   7.58 5.58 4.57 3.82  3.05  2.60
 12  28.3  26.2  23.3  21.0  18.5  14.8  11.3   8.44 6.30 5.23 4.40  3.57  3.07
 13  29.8  27.7  24.7  22.4  19.8  16.0  12.3   9.30 7.04 5.89 5.01  4.11  3.57
 14  31.3  29.1  26.1  23.7  21.1  17.1  13.3  10.2  7.79 6.57 5.63  4.66  4.07
 15  32.8  30.6  27.5  25.0  22.3  18.2  14.3  11.0  8.55 7.26 6.26  5.23  4.60

 16  34.3  32.0  28.8  26.3  23.5  19.4  15.3  11.9  9.31 7.96 6.91  5.81  5.14
 17  35.7  33.4  30.2  27.6  24.8  20.5  16.3  12.8 10.1  8.67 7.56  6.41  5.70
 18  37.2  34.8  31.5  28.9  26.0  21.6  17.3  13.7 10.9  9.39 8.23  7.01  6.26
 19  38.6  36.2  32.9  30.1  27.2  22.7  18.3  14.6 11.7 10.1  8.91  7.63  6.84
 20  40.0  37.6  34.2  31.4  28.4  23.8  19.3  15.5 12.4 10.9  9.59  8.26  7.43

  ______________________________________________________________________________
  v  .995  .99   .975  .95   .90   .75    .50   .25  .10 .05  .025  .01    .005
  ------------------------------------------------------------------------------

 21  41.4  38.9  35.5  32.7  29.6  24.9  20.3  16.3 13.2 11.6 10.3   8.90  8.03
 22  42.8  40.3  36.8  33.9  30.8  26.0  21.3  17.2 14.0 12.3 11.0   9.54  8.64
 23  44.2  41.6  38.1  35.2  32.0  27.1  22.3  18.1 14.8 13.1 11.7  10.2   9.26
 24  45.6  43.0  39.4  36.4  33.2  28.2  23.3  19.0 15.7 13.8 12.4  10.9   9.89
 25  46.9  44.3  40.6  37.7  34.4  29.3  24.3  19.9 16.5 14.6 13.1  11.5  10.5

 26  48.3  45.6  41.9  38.9  35.6  30.4  25.3  20.8 17.3 15.4 13.8  12.2  11.2 
 27  49.6  47.0  43.2  40.1  36.7  31.5  26.3  21.7 18.1 16.2 14.6  12.9  11.8
 28  51.0  48.3  44.5  41.3  37.9  32.6  27.3  22.7 18.9 16.9 15.3  13.6  12.5
 29  52.3  49.6  45.7  42.6  39.1  33.7  28.3  23.6 19.8 17.7 16.0  14.3  13.1
 30  53.7  50.9  47.0  43.8  40.3  34.8  29.3  24.5 20.6 18.5 16.8  15.0  13.8

 40  66.8  63.7  59.3  55.8  51.8  45.6  39.3  33.7 29.1 26.5 24.4  22.2  20.7
 50  79.5  76.2  71.4  67.5  63.2  56.3  49.3  42.9 37.7 34.8 32.4  29.7  28.0
 60  92.0  88.4  83.3  79.1  74.4  67.0  59.3  52.3 46.5 43.2 40.5  37.5  35.5
 70 104.2 100.4  95.0  90.5  85.5  77.6  69.3  61.7 55.3 51.7 48.8  45.4  43.3
 80 116.3 112.3 106.6 101.9  96.6  88.1  79.3  71.1 64.3 60.4 57.2  53.5  51.2

 90 128.3 124.1 118.1 113.1 107.6  98.6  89.3  80.6 73.3 69.1 65.6  61.8  59.2
100 140.2 135.8 129.6 124.3 118.5 109.1  99.3  90.1  82.4 77.9 74.2 70.1  67.3
--------------------------------------------------------------------------------