14 12 10 8 6 4 2 0 5 10 15 20 25 30 80 70 60 50 40 30 20 10 0 5 10 15 20 25 30 XX 20 30 40 50 60 70 80
2.3% 2.3% 34.1%3 4.1% 13.6% 13.6% 20 30 40 50 60 70 80 v-scale 6 9 12 15 18 21 24 IQ 55 70 85 100 115 130 145