ABSTRACT
As discussed earlier, the normal distribution predicts that children scoring at and above IQ 160 on the Stanford-Binet L-M will appear in the population at a ratio of fewer than 1 in 10,000. If the average elementary school teacher were to enjoy a career lasting for 40 years, and if her average class size over that period were to be 40 students, the likelihood of that teacher encountering a child of IQ 160+ during her entire professional career would be less than one chance in seven. Employing the same parameters, the likelihood of this teacher encountering a child of IQ 180+, such as Adrian, Christopher or Ian, would be 1 in 625!
