9. Q At our university, the male students have average hight 172.6 cm and weight 72.3 kg; whereas, the female students 165.3 cm and 65.4 kg. Further the male:female proportion is 3 : 1. Assume that the body-hight and weight follow 2-dimensional normal distribution with covariance matrix _ 4 5 c _ (5 9) . We forgot the name and gender of a student, we only know the hight 170 cm and weight 68 kg. Using the Fisher's discriminating function, to which group (male or female) this student could be classied