In a certain class of​ students, there are 12 boys from​ wilmette, 6 girls from​ kenilworth, 6 girls from​ wilmette, 7 boys from​ glencoe, 3 boys from kenilworth and 6 girls from glencoe. if the teacher calls upon a student to answer a​ question, what is the probability that the student will be from​ kenilworth