Classification Table
Correct Incorrect Percentages
Prob
Level Event
Non-
event Event
Non-
event Correct
Sensi-
tivity
Speci-
ficity
False
POS
False
NEG
0.000 114 0 175 0 39.4 100.0 0.0 60.6.
0.020 114 2 173 0 40.1 100.0 1.1 60.3 0.0
0.040 113 19 156 1 45.7 99.1 10.9 58.0 5.0
0.060 110 38 137 4 51.2 96.5 21.7 55.5 9.5
0.080 108 58 117 6 57.4 94.7 33.1 52.0 9.4
0.100 107 73 102 7 62.3 93.9 41.7 48.8 8.8
0.120 107 75 100 7 63.0 93.9 42.9 48.3 8.5
0.140 106 81 94 8 64.7 93.0 46.3 47.0 9.0
0.160 106 89 86 8 67.5 93.0 50.9 44.8 8.2
0.180 106 91 84 8 68.2 93.0 52.0 44.2 8.1
0.200 106 93 82 8 68.9 93.0 53.1 43.6 7.9
0.220 102 99 76 12 69.6 89.5 56.6 42.7 10.8
0.240 101 100 75 13 69.6 88.6 57.1 42.6 11.5
0.260 99 105 70 15 70.6 86.8 60.0 41.4 12.5
0.280 98 106 69 16 70.6 86.0 60.6 41.3 13.1
0.300 98 107 68 16 70.9 86.0 61.1 41.0 13.0
0.320 96 115 60 18 73.0 84.2 65.7 38.5 13.5
0.340 96 117 58 18 73.7 84.2 66.9 37.7 13.3
0.360 95 119 56 19 74.0 83.3 68.0 37.1 13.8
0.380 92 120 55 22 73.4 80.7 68.6 37.4 15.5
0.400 91 121 54 23 73.4 79.8 69.1 37.2 16.0
0.420 91 125 50 23 74.7 79.8 71.4 35.5 15.5
0.440 91 127 48 23 75.4 79.8 72.6 34.5 15.3
0.460 89 129 46 25 75.4 78.1 73.7 34.1 16.2
0.480 85 134 41 29 75.8 74.6 76.6 32.5 17.8
0.500 82 138 37 32 76.1 71.9 78.9 31.1 18.8
0.520 81 140 35 33 76.5 71.1 80.0 30.2 19.1
0.540 79 141 34 35 76.1 69.3 80.6 30.1 19.9
0.560 75 145 30 39 76.1 65.8 82.9 28.6 21.2
0.580 73 147 28 41 76.1 64.0 84.0 27.7 21.8
0.600 70 151 24 44 76.5 61.4 86.3 25.5 22.6
0.620 66 153 22 48 75.8 57.9 87.4 25.0 23.9
0.640 61 156 19 53 75.1 53.5 89.1 23.8 25.4
0.660 55 160 15 59 74.4 48.2 91.4 21.4 26.9
0.680 48 163 12 66 73.0 42.1 93.1 20.0 28.8
0.700 42 165 10 72 71.6 36.8 94.3 19.2 30.4
0.720 34 167 8 80 69.6 29.8 95.4 19.0 32.4
0.740 32 171 4 82 70.2 28.1 97.7 11.1 32.4
0.760 29 171 4 85 69.2 25.4 97.7 12.1 33.2
0.780 25 171 4 89 67.8 21.9 97.7 13.8 34.2
0.800 17 172 3 97 65.4 14.9 98.3 15.0 36.1
0.820 12 173 2 102 64.0 10.5 98.9 14.3 37.1
0.840 11 174 1 103 64.0 9.6 99.4 8.3 37.2
0.860 6 174 1 108 62.3 5.3 99.4 14.3 38.3
0.880 5 174 1 109 61.9 4.4 99.4 16.7 38.5
0.900 0 175 0 114 60.6 0.0 100.0. 39.4
0.920 0 175 0 114 60.6 0.0 100.0. 39.4
0.940 0 175 0 114 60.6 0.0 100.0. 39.4
0.960 0 175 0 114 60.6 0.0 100.0. 39.4
0.980 0 175 0 114 60.6 0.0 100.0. 39.4
1.000 0 175 0 114 60.6 0.0 100.0. 39.4
Questions based on the above information begin on the
next page.
Test 381