In a survey conducted of 2,000 clerks in an office it found that 48%preferred coffee (C), 54% liked Tea (T) and 64% used to smoke (S). Of the total 28% used C and T, 32% used T and S, and 30% preferred C and S. Only 6% did not of these. Find
In a survey conducted of 2,000 clerks in an office it found that 48%preferred coffee (C), 54% liked Tea (T) and 64% used to smoke (S). Of the total 28% used C and T, 32% used T and S, and 30% preferred C and S. Only 6% did not of these. Find
