1. Sadia and Mustakim suffers from a number of skin complexities and below table gives the varieties and frequencies of such complexities that each of them experiences in a year: Pimple Acne Pigmentation Eczema Mustakim 6 9 6 10 Sadia 7 14 15 9 Test at 5% significance level whether the type of skin complexity is related to the person concerned. 10